{"id":1002,"date":"2026-03-28T17:35:32","date_gmt":"2026-03-28T14:35:32","guid":{"rendered":"https:\/\/blogs.e-me.edu.gr\/hive-3o-ds-marmaron-st1\/?p=1002"},"modified":"2026-03-28T18:06:23","modified_gmt":"2026-03-28T15:06:23","slug":"%ce%bc%ce%b1%ce%b8%ce%b7%ce%bc%ce%b1%cf%84%ce%b9%ce%ba%ce%ac-%cf%80%cf%81%ce%bf%ce%b5%cf%84%ce%bf%ce%b9%ce%bc%ce%b1%cf%83%ce%af%ce%b1-%ce%b3%ce%b9%ce%b1-%ce%b4%ce%b9%ce%b1%ce%b3%cf%8e%ce%bd%ce%b9","status":"publish","type":"post","link":"https:\/\/blogs.e-me.edu.gr\/hive-3o-ds-marmaron-st1\/2026\/03\/28\/%ce%bc%ce%b1%ce%b8%ce%b7%ce%bc%ce%b1%cf%84%ce%b9%ce%ba%ce%ac-%cf%80%cf%81%ce%bf%ce%b5%cf%84%ce%bf%ce%b9%ce%bc%ce%b1%cf%83%ce%af%ce%b1-%ce%b3%ce%b9%ce%b1-%ce%b4%ce%b9%ce%b1%ce%b3%cf%8e%ce%bd%ce%b9\/","title":{"rendered":"\u039c\u03b1\u03b8\u03b7\u03bc\u03b1\u03c4\u03b9\u03ba\u03ac &#8211; \u03a0\u03c1\u03bf\u03b5\u03c4\u03bf\u03b9\u03bc\u03b1\u03c3\u03af\u03b1 \u03b3\u03b9\u03b1 \u0394\u03b9\u03b1\u03b3\u03ce\u03bd\u03b9\u03c3\u03bc\u03b1 &#8211; \u0391\u03bd\u03ac\u03bb\u03bf\u03b3\u03b1 \u03ba\u03b1\u03b9 \u03b1\u03bd\u03c4\u03b9\u03c3\u03c4\u03c1\u03cc\u03c6\u03c9\u03c2 \u03b1\u03bd\u03ac\u03bb\u03bf\u03b3\u03b1 \u03c0\u03bf\u03c3\u03ac, \u03a0\u03c1\u03bf\u03b2\u03bb\u03ae\u03bc\u03b1\u03c4\u03b1 \u03bc\u03b5 \u03c0\u03bf\u03c3\u03bf\u03c3\u03c4\u03ac"},"content":{"rendered":"<h5 data-path-to-node=\"2\"><span style=\"color: #0000ff\">1. \u0391\u03bd\u03ac\u03bb\u03bf\u03b3\u03b1 \u03a0\u03bf\u03c3\u03ac<\/span><\/h5>\n<p data-path-to-node=\"3\"><b data-path-to-node=\"3\" data-index-in-node=\"0\">\u03b1. \u03a4\u03b9 \u03b5\u03af\u03bd\u03b1\u03b9 \u03c4\u03b1 \u03b1\u03bd\u03ac\u03bb\u03bf\u03b3\u03b1 \u03c0\u03bf\u03c3\u03ac;<br \/>\n<\/b>\u0394\u03cd\u03bf \u03c0\u03bf\u03c3\u03ac \u03b5\u03af\u03bd\u03b1\u03b9 \u03b1\u03bd\u03ac\u03bb\u03bf\u03b3\u03b1 \u03cc\u03c4\u03b1\u03bd \u03b1\u03c5\u03be\u03ac\u03bd\u03bf\u03bd\u03c4\u03b1\u03b9 \u03ae \u03bc\u03b5\u03b9\u03ce\u03bd\u03bf\u03bd\u03c4\u03b1\u03b9 \u03bc\u03b5 \u03c4\u03bf\u03bd \u03af\u03b4\u03b9\u03bf \u03b1\u03ba\u03c1\u03b9\u03b2\u03ce\u03c2 \u03c1\u03c5\u03b8\u03bc\u03cc. \u0391\u03bd, \u03b3\u03b9\u03b1 \u03c0\u03b1\u03c1\u03ac\u03b4\u03b5\u03b9\u03b3\u03bc\u03b1, \u03b4\u03b9\u03c0\u03bb\u03b1\u03c3\u03b9\u03ac\u03c3\u03bf\u03c5\u03bc\u03b5 \u03c4\u03bf \u03ad\u03bd\u03b1 \u03c0\u03bf\u03c3\u03cc, \u03b8\u03b1 \u03b4\u03b9\u03c0\u03bb\u03b1\u03c3\u03b9\u03b1\u03c3\u03c4\u03b5\u03af \u03b1\u03c5\u03c4\u03cc\u03bc\u03b1\u03c4\u03b1 \u03ba\u03b1\u03b9 \u03c4\u03bf \u03ac\u03bb\u03bb\u03bf.<\/p>\n<p data-path-to-node=\"4\"><b data-path-to-node=\"4\" data-index-in-node=\"0\">\u03b2. \u03a0\u03ce\u03c2 \u03bb\u03cd\u03bd\u03bf\u03c5\u03bc\u03b5 \u03c0\u03c1\u03bf\u03b2\u03bb\u03ae\u03bc\u03b1\u03c4\u03b1 \u03bc\u03b5 \u03b1\u03bd\u03ac\u03bb\u03bf\u03b3\u03b1 \u03c0\u03bf\u03c3\u03ac: \u039c\u03b5 \u03c0\u03af\u03bd\u03b1\u03ba\u03b1 \u03a0\u03bf\u03c3\u03ce\u03bd \u03ba\u03b1\u03b9 \u03a4\u03b9\u03bc\u03ce\u03bd<br \/>\n<\/b>\u039f \u03c0\u03b9\u03bf \u03c3\u03af\u03b3\u03bf\u03c5\u03c1\u03bf\u03c2 \u03c4\u03c1\u03cc\u03c0\u03bf\u03c2 \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03bb\u03cd\u03c3\u03bf\u03c5\u03bc\u03b5 \u03c4\u03ad\u03c4\u03bf\u03b9\u03b1 \u03c0\u03c1\u03bf\u03b2\u03bb\u03ae\u03bc\u03b1\u03c4\u03b1 \u03b5\u03af\u03bd\u03b1\u03b9 \u03bd\u03b1 \u03bf\u03c1\u03b3\u03b1\u03bd\u03ce\u03c3\u03bf\u03c5\u03bc\u03b5 \u03c4\u03b1 \u03b4\u03b5\u03b4\u03bf\u03bc\u03ad\u03bd\u03b1 \u03bc\u03b1\u03c2 \u03c3\u03b5 \u03ad\u03bd\u03b1\u03bd \u03c0\u03af\u03bd\u03b1\u03ba\u03b1.<\/p>\n<ul data-path-to-node=\"5\">\n<li>\n<p data-path-to-node=\"5,0,0\">\u03a3\u03c4\u03b7\u03bd \u03c0\u03c1\u03ce\u03c4\u03b7 \u03c3\u03c4\u03ae\u03bb\u03b7 \u03b3\u03c1\u03ac\u03c6\u03bf\u03c5\u03bc\u03b5 \u03c4\u03b1 <b data-path-to-node=\"5,0,0\" data-index-in-node=\"29\">\u03a0\u03bf\u03c3\u03ac<\/b> (\u03bc\u03b5 \u03bb\u03ad\u03be\u03b5\u03b9\u03c2, \u03c0.\u03c7., \"\u039a\u03b9\u03bb\u03ac\", \"\u0395\u03c5\u03c1\u03ce\").<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"5,1,0\">\u03a3\u03c4\u03b9\u03c2 \u03b5\u03c0\u03cc\u03bc\u03b5\u03bd\u03b5\u03c2 \u03c3\u03c4\u03ae\u03bb\u03b5\u03c2 \u03b2\u03ac\u03b6\u03bf\u03c5\u03bc\u03b5 \u03c4\u03b9\u03c2 <b data-path-to-node=\"5,1,0\" data-index-in-node=\"33\">\u03a4\u03b9\u03bc\u03ad\u03c2<\/b> (\u03c4\u03bf\u03c5\u03c2 \u03b1\u03c1\u03b9\u03b8\u03bc\u03bf\u03cd\u03c2 \u03c0\u03bf\u03c5 \u03bc\u03b1\u03c2 \u03b4\u03af\u03bd\u03b5\u03b9 \u03c4\u03bf \u03c0\u03c1\u03cc\u03b2\u03bb\u03b7\u03bc\u03b1).<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"5,2,0\">\u0393\u03b9\u03b1 \u03c4\u03bf\u03bd \u03b1\u03c1\u03b9\u03b8\u03bc\u03cc \u03c0\u03bf\u03c5 \u03c8\u03ac\u03c7\u03bd\u03bf\u03c5\u03bc\u03b5, \u03b2\u03ac\u03b6\u03bf\u03c5\u03bc\u03b5 \u03c4\u03bf\u03bd \u03ac\u03b3\u03bd\u03c9\u03c3\u03c4\u03bf <span class=\"math-inline\" data-math=\"x\" data-index-in-node=\"49\"><span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">x<\/span><\/span><\/span><\/span><\/span>.<\/p>\n<\/li>\n<\/ul>\n<p data-path-to-node=\"6\"><b data-path-to-node=\"6\" data-index-in-node=\"0\">\u03a0\u03b1\u03c1\u03ac\u03b4\u03b5\u03b9\u03b3\u03bc\u03b1:<\/b><\/p>\n<blockquote data-path-to-node=\"7\">\n<p data-path-to-node=\"7,0\"><i data-path-to-node=\"7,0\" data-index-in-node=\"0\">\u039c\u03b9\u03b1 \u03c3\u03c5\u03bd\u03c4\u03b1\u03b3\u03ae \u03b3\u03b9\u03b1 \u03ba\u03ad\u03b9\u03ba \u03b1\u03bd\u03b1\u03c6\u03ad\u03c1\u03b5\u03b9 \u03cc\u03c4\u03b9 \u03b3\u03b9\u03b1 4 \u03bc\u03b5\u03c1\u03af\u03b4\u03b5\u03c2 \u03c7\u03c1\u03b5\u03b9\u03b1\u03b6\u03cc\u03bc\u03b1\u03c3\u03c4\u03b5 200 \u03b3\u03c1\u03b1\u03bc\u03bc\u03ac\u03c1\u03b9\u03b1 \u03b6\u03ac\u03c7\u03b1\u03c1\u03b7. \u03a0\u03cc\u03c3\u03b1 \u03b3\u03c1\u03b1\u03bc\u03bc\u03ac\u03c1\u03b9\u03b1 \u03b6\u03ac\u03c7\u03b1\u03c1\u03b7 \u03b8\u03b1 \u03c7\u03c1\u03b5\u03b9\u03b1\u03c3\u03c4\u03bf\u03cd\u03bc\u03b5 \u03b1\u03bd \u03b8\u03ad\u03bb\u03bf\u03c5\u03bc\u03b5 \u03bd\u03b1 \u03c6\u03c4\u03b9\u03ac\u03be\u03bf\u03c5\u03bc\u03b5 10 \u03bc\u03b5\u03c1\u03af\u03b4\u03b5\u03c2;<\/i><\/p>\n<\/blockquote>\n<p data-path-to-node=\"7,0\"><strong>\u039b\u03cd\u03c3\u03b7<\/strong><\/p>\n<p><strong>1. \u03a6\u03c4\u03b9\u03ac\u03c7\u03bd\u03bf\u03c5\u03bc\u03b5 \u03c4\u03bf\u03bd \u03c0\u03af\u03bd\u03b1\u03ba\u03b1<\/strong><\/p>\n<p data-path-to-node=\"7,0\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-1004 size-full\" src=\"https:\/\/blogs.e-me.edu.gr\/hive-3o-ds-marmaron-st1\/wp-content\/uploads\/sites\/340509\/2026\/03\/Screenshot-2026-03-28-at-3.57.48-PM.png\" alt=\"\" width=\"910\" height=\"220\" srcset=\"https:\/\/blogs.e-me.edu.gr\/hive-3o-ds-marmaron-st1\/wp-content\/uploads\/sites\/340509\/2026\/03\/Screenshot-2026-03-28-at-3.57.48-PM.png 910w, https:\/\/blogs.e-me.edu.gr\/hive-3o-ds-marmaron-st1\/wp-content\/uploads\/sites\/340509\/2026\/03\/Screenshot-2026-03-28-at-3.57.48-PM-300x73.png 300w, https:\/\/blogs.e-me.edu.gr\/hive-3o-ds-marmaron-st1\/wp-content\/uploads\/sites\/340509\/2026\/03\/Screenshot-2026-03-28-at-3.57.48-PM-768x186.png 768w\" sizes=\"auto, (max-width: 910px) 100vw, 910px\" \/><\/p>\n<p data-path-to-node=\"7,0\"><strong>2. \u03a3\u03ba\u03b5\u03c6\u03c4\u03cc\u03bc\u03b1\u03c3\u03c4\u03b5: \u0395\u03af\u03bd\u03b1\u03b9 \u03c4\u03b1 \u03c0\u03bf\u03c3\u03ac \u03bc\u03b1\u03c2 \u03b1\u03bd\u03ac\u03bb\u03bf\u03b3\u03b1; \u0397 \u03b1\u03c0\u03ac\u03bd\u03c4\u03b7\u03c3\u03b7 \u03b5\u03af\u03bd\u03b1\u03b9: \u03bd\u03b1\u03b9, \u03b5\u03c0\u03b5\u03b9\u03b4\u03ae \u03b3\u03b9\u03b1 \u03c0\u03b5\u03c1\u03b9\u03c3\u03c3\u03cc\u03c4\u03b5\u03c1\u03b5\u03c2 \u03bc\u03b5\u03c1\u03af\u03b4\u03b5\u03c2 \u03b8\u03b1 \u03c7\u03c1\u03b5\u03b9\u03b1\u03c3\u03c4\u03bf\u03cd\u03bc\u03b5 \u03c0\u03b5\u03c1\u03b9\u03c3\u03c3\u03cc\u03c4\u03b5\u03c1\u03b7 \u03b6\u03ac\u03c7\u03b1\u03c1\u03b7.\u00a0<\/strong><\/p>\n<p data-path-to-node=\"7,0\"><strong>3. \u0395\u03c0\u03b5\u03b9\u03b4\u03ae \u03c4\u03b1 \u03c0\u03bf\u03c3\u03ac \u03bc\u03b1\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b1\u03bd\u03ac\u03bb\u03bf\u03b3\u03b1, \u03bb\u03cd\u03bd\u03bf\u03c5\u03bc\u03b5 \u03c4\u03bf \u03c0\u03c1\u03cc\u03b2\u03bb\u03b7\u03bc\u03b1 \u03bc\u03b5 \u03c3\u03c4\u03b1\u03c5\u03c1\u03c9\u03c4\u03ac \u03b3\u03b9\u03bd\u03cc\u03bc\u03b5\u03bd\u03b1 (\u03c0\u03bf\u03bb\u03bb\u03b1\u03c0\u03bb\u03b1\u03c3\u03b9\u03ac\u03b6\u03bf\u03bd\u03c4\u03b1\u03c2 \u03c7\u03b9\u03b1\u03c3\u03c4\u03af). \u0397 \u03b5\u03be\u03af\u03c3\u03c9\u03c3\u03b7 \u03c0\u03bf\u03c5 \u03b8\u03b1 \u03c3\u03c7\u03b7\u03bc\u03b1\u03c4\u03af\u03c3\u03bf\u03c5\u03bc\u03b5 \u03b5\u03af\u03bd\u03b1\u03b9:\u00a0<\/strong><\/p>\n<p data-path-to-node=\"7,0\"><strong>4 * x = 200 * 10<br \/>\n4 * x = 2000<br \/>\nx = 2000 : 4<br \/>\nx = 500<\/strong><\/p>\n<p data-path-to-node=\"16\"><b data-path-to-node=\"16\" data-index-in-node=\"0\">\u0391\u03c0\u03ac\u03bd\u03c4\u03b7\u03c3\u03b7:<\/b> \u0393\u03b9\u03b1 10 \u03bc\u03b5\u03c1\u03af\u03b4\u03b5\u03c2 \u03b8\u03b1 \u03c7\u03c1\u03b5\u03b9\u03b1\u03c3\u03c4\u03bf\u03cd\u03bc\u03b5 500 \u03b3\u03c1\u03b1\u03bc\u03bc\u03ac\u03c1\u03b9\u03b1 \u03b6\u03ac\u03c7\u03b1\u03c1\u03b7.<\/p>\n<h5 data-path-to-node=\"16\"><\/h5>\n<h5 data-path-to-node=\"16\"><span style=\"color: #0000ff\">2. \u0391\u03bd\u03c4\u03b9\u03c3\u03c4\u03c1\u03cc\u03c6\u03c9\u03c2 \u03b1\u03bd\u03ac\u03bb\u03bf\u03b3\u03b1 \u03c0\u03bf\u03c3\u03ac<\/span><\/h5>\n<p data-path-to-node=\"3\"><b data-path-to-node=\"3\" data-index-in-node=\"0\">\u03b1. \u03a4\u03b9 \u03b5\u03af\u03bd\u03b1\u03b9 \u03c4\u03b1 \u03b1\u03bd\u03c4\u03b9\u03c3\u03c4\u03c1\u03cc\u03c6\u03c9\u03c2 \u03b1\u03bd\u03ac\u03bb\u03bf\u03b3\u03b1 \u03c0\u03bf\u03c3\u03ac;<\/b><br \/>\n\u0394\u03cd\u03bf \u03c0\u03bf\u03c3\u03ac \u03b5\u03af\u03bd\u03b1\u03b9 \u03b1\u03bd\u03c4\u03b9\u03c3\u03c4\u03c1\u03cc\u03c6\u03c9\u03c2 \u03b1\u03bd\u03ac\u03bb\u03bf\u03b3\u03b1 \u03cc\u03c4\u03b1\u03bd \u03b7 \u03b1\u03cd\u03be\u03b7\u03c3\u03b7 \u03c4\u03bf\u03c5 \u03b5\u03bd\u03cc\u03c2 \u03c0\u03c1\u03bf\u03ba\u03b1\u03bb\u03b5\u03af \u03c4\u03b7\u03bd \u03b1\u03bd\u03c4\u03af\u03c3\u03c4\u03bf\u03b9\u03c7\u03b7 \u03bc\u03b5\u03af\u03c9\u03c3\u03b7 \u03c4\u03bf\u03c5 \u03ac\u03bb\u03bb\u03bf\u03c5. \u0393\u03b9\u03b1 \u03c0\u03b1\u03c1\u03ac\u03b4\u03b5\u03b9\u03b3\u03bc\u03b1, \u03b1\u03bd \u03b4\u03b9\u03c0\u03bb\u03b1\u03c3\u03b9\u03ac\u03c3\u03bf\u03c5\u03bc\u03b5 \u03c4\u03bf \u03ad\u03bd\u03b1 \u03c0\u03bf\u03c3\u03cc, \u03c4\u03bf \u03ac\u03bb\u03bb\u03bf \u03b8\u03b1 \u03c5\u03c0\u03bf\u03b4\u03b9\u03c0\u03bb\u03b1\u03c3\u03b9\u03b1\u03c3\u03c4\u03b5\u03af (\u03b8\u03b1 \u03bc\u03b5\u03b9\u03c9\u03b8\u03b5\u03af \u03c3\u03c4\u03bf \u03bc\u03b9\u03c3\u03cc).<\/p>\n<p data-path-to-node=\"4\"><b data-path-to-node=\"4\" data-index-in-node=\"0\">\u03b2. \u03a0\u03ce\u03c2 \u03c4\u03b1 \u03bb\u03cd\u03bd\u03bf\u03c5\u03bc\u03b5: \u039c\u03b5 \u03c0\u03af\u03bd\u03b1\u03ba\u03b1 \u03a0\u03bf\u03c3\u03ce\u03bd \u03ba\u03b1\u03b9 \u03a4\u03b9\u03bc\u03ce\u03bd<\/b><br \/>\n\u039f\u03c1\u03b3\u03b1\u03bd\u03ce\u03bd\u03bf\u03c5\u03bc\u03b5 \u03c4\u03b1 \u03b4\u03b5\u03b4\u03bf\u03bc\u03ad\u03bd\u03b1 \u03bc\u03b1\u03c2 \u03b1\u03ba\u03c1\u03b9\u03b2\u03ce\u03c2 \u03cc\u03c0\u03c9\u03c2 \u03ba\u03b1\u03b9 \u03c3\u03c4\u03b1 \u03b1\u03bd\u03ac\u03bb\u03bf\u03b3\u03b1 \u03c0\u03bf\u03c3\u03ac, <strong>\u03c3\u03b5 \u03ad\u03bd\u03b1\u03bd \u03c0\u03af\u03bd\u03b1\u03ba\u03b1<\/strong>. \u0397 \u03bc\u03b5\u03b3\u03ac\u03bb\u03b7 \u03b4\u03b9\u03b1\u03c6\u03bf\u03c1\u03ac \u03b2\u03c1\u03af\u03c3\u03ba\u03b5\u03c4\u03b1\u03b9 \u03c3\u03c4\u03bf \u03c0\u03ce\u03c2 \u03c6\u03c4\u03b9\u03ac\u03c7\u03bd\u03bf\u03c5\u03bc\u03b5 \u03c4\u03b7\u03bd \u03b5\u03be\u03af\u03c3\u03c9\u03c3\u03b7:<\/p>\n<ul data-path-to-node=\"5\">\n<li>\n<p data-path-to-node=\"5,0,0\">\u03a3\u03c4\u03b1 \u03b1\u03bd\u03ac\u03bb\u03bf\u03b3\u03b1 \u03c0\u03bf\u03c3\u03ac \u03c0\u03bf\u03bb\u03bb\u03b1\u03c0\u03bb\u03b1\u03c3\u03b9\u03ac\u03b6\u03bf\u03c5\u03bc\u03b5 \"\u03c7\u03b9\u03b1\u03c3\u03c4\u03af\".<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"5,1,0\">\u03a3\u03c4\u03b1 <b data-path-to-node=\"5,1,0\" data-index-in-node=\"4\">\u03b1\u03bd\u03c4\u03b9\u03c3\u03c4\u03c1\u03cc\u03c6\u03c9\u03c2 \u03b1\u03bd\u03ac\u03bb\u03bf\u03b3\u03b1<\/b> \u03c0\u03bf\u03c3\u03ac \u03c0\u03bf\u03bb\u03bb\u03b1\u03c0\u03bb\u03b1\u03c3\u03b9\u03ac\u03b6\u03bf\u03c5\u03bc\u03b5 <b data-path-to-node=\"5,1,0\" data-index-in-node=\"46\">\u03ba\u03ac\u03b8\u03b5\u03c4\u03b1<\/b>\u00a0(\u03c4\u03bf\u03bd \u03c0\u03ac\u03bd\u03c9 \u03b1\u03c1\u03b9\u03b8\u03bc\u03cc \u03bc\u03b5 \u03c4\u03bf\u03bd \u03ba\u03ac\u03c4\u03c9 \u03b1\u03c1\u03b9\u03b8\u03bc\u03cc \u03c4\u03b7\u03c2 \u03af\u03b4\u03b9\u03b1\u03c2 \u03c3\u03c4\u03ae\u03bb\u03b7\u03c2), \u03b3\u03b9\u03b1\u03c4\u03af \u03c4\u03bf \u03b3\u03b9\u03bd\u03cc\u03bc\u03b5\u03bd\u03cc \u03c4\u03bf\u03c5\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 \u03c3\u03c4\u03b1\u03b8\u03b5\u03c1\u03cc.<\/p>\n<\/li>\n<\/ul>\n<p data-path-to-node=\"6\"><b data-path-to-node=\"6\" data-index-in-node=\"0\">\u03a0\u03b1\u03c1\u03ac\u03b4\u03b5\u03b9\u03b3\u03bc\u03b1:<\/b><\/p>\n<blockquote data-path-to-node=\"7\">\n<p data-path-to-node=\"7,0\"><i data-path-to-node=\"7,0\" data-index-in-node=\"0\">\u0388\u03bd\u03b1 \u03b1\u03c5\u03c4\u03bf\u03ba\u03af\u03bd\u03b7\u03c4\u03bf \u03c0\u03bf\u03c5 \u03ba\u03b9\u03bd\u03b5\u03af\u03c4\u03b1\u03b9 \u03bc\u03b5 \u03c3\u03c4\u03b1\u03b8\u03b5\u03c1\u03ae \u03c4\u03b1\u03c7\u03cd\u03c4\u03b7\u03c4\u03b1 60 \u03c7\u03bb\u03bc\/\u03ce\u03c1\u03b1 \u03c7\u03c1\u03b5\u03b9\u03ac\u03b6\u03b5\u03c4\u03b1\u03b9 4 \u03ce\u03c1\u03b5\u03c2 \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03ba\u03b1\u03bb\u03cd\u03c8\u03b5\u03b9 \u03bc\u03b9\u03b1 \u03b1\u03c0\u03cc\u03c3\u03c4\u03b1\u03c3\u03b7. \u03a0\u03cc\u03c3\u03b5\u03c2 \u03ce\u03c1\u03b5\u03c2 \u03b8\u03b1 \u03c7\u03c1\u03b5\u03b9\u03b1\u03b6\u03cc\u03c4\u03b1\u03bd \u03b3\u03b9\u03b1 \u03c4\u03b7\u03bd \u03af\u03b4\u03b9\u03b1 \u03b1\u03c0\u03cc\u03c3\u03c4\u03b1\u03c3\u03b7 \u03b1\u03bd \u03b7 \u03c4\u03b1\u03c7\u03cd\u03c4\u03b7\u03c4\u03ac \u03c4\u03bf\u03c5 \u03ae\u03c4\u03b1\u03bd 80 \u03c7\u03bb\u03bc\/\u03ce\u03c1\u03b1;<\/i><\/p>\n<\/blockquote>\n<p data-path-to-node=\"7,0\"><strong>\u039b\u03cd\u03c3\u03b7<\/strong><\/p>\n<p><strong>1. \u03a6\u03c4\u03b9\u03ac\u03c7\u03bd\u03bf\u03c5\u03bc\u03b5 \u03c4\u03bf\u03bd \u03c0\u03af\u03bd\u03b1\u03ba\u03b1<\/strong><\/p>\n<p data-path-to-node=\"7,0\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-1005 size-full\" src=\"https:\/\/blogs.e-me.edu.gr\/hive-3o-ds-marmaron-st1\/wp-content\/uploads\/sites\/340509\/2026\/03\/Screenshot-2026-03-28-at-4.08.52-PM.png\" alt=\"\" width=\"906\" height=\"218\" srcset=\"https:\/\/blogs.e-me.edu.gr\/hive-3o-ds-marmaron-st1\/wp-content\/uploads\/sites\/340509\/2026\/03\/Screenshot-2026-03-28-at-4.08.52-PM.png 906w, https:\/\/blogs.e-me.edu.gr\/hive-3o-ds-marmaron-st1\/wp-content\/uploads\/sites\/340509\/2026\/03\/Screenshot-2026-03-28-at-4.08.52-PM-300x72.png 300w, https:\/\/blogs.e-me.edu.gr\/hive-3o-ds-marmaron-st1\/wp-content\/uploads\/sites\/340509\/2026\/03\/Screenshot-2026-03-28-at-4.08.52-PM-768x185.png 768w\" sizes=\"auto, (max-width: 906px) 100vw, 906px\" \/><\/p>\n<p data-path-to-node=\"7,0\"><strong>2. \u03a3\u03ba\u03b5\u03c6\u03c4\u03cc\u03bc\u03b1\u03c3\u03c4\u03b5: \u0395\u03af\u03bd\u03b1\u03b9 \u03c4\u03b1 \u03c0\u03bf\u03c3\u03ac \u03bc\u03b1\u03c2 \u03b1\u03bd\u03ac\u03bb\u03bf\u03b3\u03b1 \u03ae \u03b1\u03bd\u03c4\u03b9\u03c3\u03c4\u03c1\u03cc\u03c6\u03c9\u03c2 \u03b1\u03bd\u03ac\u03bb\u03bf\u03b3\u03b1; \u0397 \u03b1\u03c0\u03ac\u03bd\u03c4\u03b7\u03c3\u03b7 \u03b5\u03af\u03bd\u03b1\u03b9: \u03b1\u03bd\u03c4\u03b9\u03c3\u03c4\u03c1\u03cc\u03c6\u03c9\u03c2 \u03b1\u03bd\u03ac\u03bb\u03bf\u03b3\u03b1, \u03b5\u03c0\u03b5\u03b9\u03b4\u03ae \u03cc\u03c3\u03bf <span style=\"text-decoration: underline\">\u03b1\u03c5\u03be\u03ac\u03bd\u03b5\u03c4\u03b1\u03b9<\/span> \u03b7 \u03c4\u03b1\u03c7\u03cd\u03c4\u03b7\u03c4\u03b1 \u03c4\u03cc\u03c3\u03bf <span style=\"text-decoration: underline\">\u03bc\u03b5\u03b9\u03ce\u03bd\u03b5\u03c4\u03b1\u03b9<\/span> \u03bf \u03c7\u03c1\u03cc\u03bd\u03bf\u03c2 \u03c0\u03bf\u03c5 \u03b8\u03b1 \u03ba\u03ac\u03bd\u03bf\u03c5\u03bc\u03b5.\u00a0<\/strong><\/p>\n<p data-path-to-node=\"7,0\"><strong>3. \u0395\u03c0\u03b5\u03b9\u03b4\u03ae \u03c4\u03b1 \u03c0\u03bf\u03c3\u03ac \u03bc\u03b1\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b1\u03bd\u03c4\u03b9\u03c3\u03c4\u03c1\u03cc\u03c6\u03c9\u03c2 \u03b1\u03bd\u03ac\u03bb\u03bf\u03b3\u03b1, \u03bb\u03cd\u03bd\u03bf\u03c5\u03bc\u03b5 \u03c4\u03bf \u03c0\u03c1\u03cc\u03b2\u03bb\u03b7\u03bc\u03b1 \u03c0\u03bf\u03bb\u03bb\u03b1\u03c0\u03bb\u03b1\u03c3\u03b9\u03ac\u03b6\u03bf\u03bd\u03c4\u03b1\u03c2 \u03c4\u03bf\u03bd \u03c0\u03ac\u03bd\u03c9 \u03b1\u03c1\u03b9\u03b8\u03bc\u03cc \u03bc\u03b5 \u03c4\u03bf\u03bd \u03ba\u03ac\u03c4\u03c9. \u0397 \u03b5\u03be\u03af\u03c3\u03c9\u03c3\u03b7 \u03c0\u03bf\u03c5 \u03b8\u03b1 \u03c3\u03c7\u03b7\u03bc\u03b1\u03c4\u03af\u03c3\u03bf\u03c5\u03bc\u03b5 \u03b5\u03af\u03bd\u03b1\u03b9:\u00a0<\/strong><\/p>\n<p data-path-to-node=\"7,0\"><strong>80 * x = 60 * 4<br \/>\n80 * x = 240<br \/>\nx = 240 : 80<br \/>\nx = 3<\/strong><\/p>\n<p data-path-to-node=\"16\"><b data-path-to-node=\"16\" data-index-in-node=\"0\">\u0391\u03c0\u03ac\u03bd\u03c4\u03b7\u03c3\u03b7:<\/b> \u039c\u03b5 \u03c4\u03b1\u03c7\u03cd\u03c4\u03b7\u03c4\u03b1 80 \u03c7\u03bb\u03bc\/\u03ce\u03c1\u03b1, \u03c4\u03bf \u03b1\u03c5\u03c4\u03bf\u03ba\u03af\u03bd\u03b7\u03c4\u03bf \u03b8\u03b1 \u03c7\u03c1\u03b5\u03b9\u03b1\u03b6\u03cc\u03c4\u03b1\u03bd 3 \u03ce\u03c1\u03b5\u03c2.<\/p>\n<h5><\/h5>\n<h5><span style=\"color: #0000ff\">3. \u03a0\u03bf\u03c3\u03bf\u03c3\u03c4\u03ac - \u03a4\u03b1 3 \u03b4\u03b9\u03b1\u03c6\u03bf\u03c1\u03b5\u03c4\u03b9\u03ba\u03ac \u03b5\u03af\u03b4\u03b7 \u03c0\u03c1\u03bf\u03b2\u03bb\u03b7\u03bc\u03ac\u03c4\u03c9\u03bd<\/span><\/h5>\n<p>\u03a4\u03b1 \u03c0\u03c1\u03bf\u03b2\u03bb\u03ae\u03bc\u03b1\u03c4\u03b1 \u03c0\u03bf\u03c3\u03bf\u03c3\u03c4\u03ce\u03bd \u03bb\u03cd\u03bd\u03bf\u03bd\u03c4\u03b1\u03b9 \u03c0\u03ac\u03bd\u03c4\u03b1 \u03c0\u03b9\u03bf \u03b5\u03cd\u03ba\u03bf\u03bb\u03b1 \u03ba\u03b1\u03b9 \u03c3\u03af\u03b3\u03bf\u03c5\u03c1\u03b1 \u03bc\u03b5<strong> \u03c0\u03af\u03bd\u03b1\u03ba\u03b1 \u03c0\u03bf\u03c3\u03ce\u03bd \u03ba\u03b1\u03b9 \u03c4\u03b9\u03bc\u03ce\u03bd<\/strong>, \u03b1\u03ba\u03c1\u03b9\u03b2\u03ce\u03c2 \u03cc\u03c0\u03c9\u03c2 \u03c4\u03b1 \u03b1\u03bd\u03ac\u03bb\u03bf\u03b3\u03b1 \u03c0\u03bf\u03c3\u03ac (\u03c0\u03bf\u03bb\u03bb\u03b1\u03c0\u03bb\u03b1\u03c3\u03b9\u03ac\u03b6\u03bf\u03bd\u03c4\u03b1\u03c2 \u03c0\u03ac\u03bd\u03c4\u03b1 \"\u03c7\u03b9\u03b1\u03c3\u03c4\u03af\", \u03b5\u03c0\u03b5\u03b9\u03b4\u03ae \u03cc\u03c4\u03b1\u03bd \u03ad\u03c7\u03bf\u03c5\u03bc\u03b5 \u03c0\u03bf\u03c3\u03bf\u03c3\u03c4\u03ac, \u03c4\u03b1 \u03c0\u03bf\u03c3\u03ac \u03bc\u03b1\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 \u03c0\u03ac\u03bd\u03c4\u03b1 \u03b1\u03bd\u03ac\u03bb\u03bf\u03b3\u03b1). \u03a4\u03bf \u03bc\u03c5\u03c3\u03c4\u03b9\u03ba\u03cc \u03b5\u03af\u03bd\u03b1\u03b9 \u03bd\u03b1 \u03b8\u03c5\u03bc\u03cc\u03bc\u03b1\u03c3\u03c4\u03b5 \u03cc\u03c4\u03b9 <strong>\u03b7 \u03b1\u03c1\u03c7\u03b9\u03ba\u03ae \u03c4\u03b9\u03bc\u03ae \u03ae \u03c4\u03bf \u03c3\u03c5\u03bd\u03bf\u03bb\u03b9\u03ba\u03cc \u03c0\u03bf\u03c3\u03cc \u03b1\u03bd\u03c4\u03b9\u03c3\u03c4\u03bf\u03b9\u03c7\u03b5\u03af \u03c0\u03ac\u03bd\u03c4\u03b1 \u03c3\u03c4\u03bf 100%<\/strong>.<\/p>\n<p><strong>\u0391\u03bd\u03ac\u03bb\u03bf\u03b3\u03b1 \u03bc\u03b5 \u03c4\u03bf \u03c4\u03b9 \u03c8\u03ac\u03c7\u03bd\u03bf\u03c5\u03bc\u03b5, \u03b4\u03b9\u03b1\u03ba\u03c1\u03af\u03bd\u03bf\u03c5\u03bc\u03b5 3 \u03b2\u03b1\u03c3\u03b9\u03ba\u03ad\u03c2 \u03c0\u03b5\u03c1\u03b9\u03c0\u03c4\u03ce\u03c3\u03b5\u03b9\u03c2:<\/strong><\/p>\n<h6><\/h6>\n<h6>\u0391. \u0391\u03bd\u03b1\u03b6\u03b7\u03c4\u03ac\u03bc\u03b5 \u03c4\u03b7\u03bd \u03a4\u03b5\u03bb\u03b9\u03ba\u03ae \u03a4\u03b9\u03bc\u03ae (\u0393\u03bd\u03c9\u03c1\u03af\u03b6\u03bf\u03c5\u03bc\u03b5 \u03c4\u03b7\u03bd \u03b1\u03c1\u03c7\u03b9\u03ba\u03ae \u03c4\u03b9\u03bc\u03ae \u03ba\u03b1\u03b9 \u03c4\u03bf \u03c0\u03bf\u03c3\u03bf\u03c3\u03c4\u03cc)<\/h6>\n<p>\u03a3\u03b5 \u03b1\u03c5\u03c4\u03ae \u03c4\u03b7\u03bd \u03c0\u03b5\u03c1\u03af\u03c0\u03c4\u03c9\u03c3\u03b7 \u03be\u03ad\u03c1\u03bf\u03c5\u03bc\u03b5 \u03b1\u03c0\u03cc \u03c0\u03bf\u03cd \u03be\u03b5\u03ba\u03b9\u03bd\u03ac\u03bc\u03b5 \u03ba\u03b1\u03b9 \u03b8\u03ad\u03bb\u03bf\u03c5\u03bc\u03b5 \u03bd\u03b1 \u03b2\u03c1\u03bf\u03cd\u03bc\u03b5 \u03c0\u03bf\u03cd \u03ba\u03b1\u03c4\u03b1\u03bb\u03ae\u03b3\u03bf\u03c5\u03bc\u03b5 \u03bc\u03b5\u03c4\u03ac \u03b1\u03c0\u03cc \u03bc\u03b9\u03b1 \u03b1\u03cd\u03be\u03b7\u03c3\u03b7 (\u03c0.\u03c7. \u03a6\u03a0\u0391, \u03ba\u03ad\u03c1\u03b4\u03bf\u03c2) \u03ae \u03bc\u03b5\u03af\u03c9\u03c3\u03b7 (\u03c0.\u03c7. \u03ad\u03ba\u03c0\u03c4\u03c9\u03c3\u03b7).<\/p>\n<p>\u03a0\u03b1\u03c1\u03ac\u03b4\u03b5\u03b9\u03b3\u03bc\u03b1:<\/p>\n<blockquote><p>\u0388\u03bd\u03b1 \u03c0\u03bf\u03b4\u03ae\u03bb\u03b1\u03c4\u03bf \u03ba\u03bf\u03c3\u03c4\u03af\u03b6\u03b5\u03b9 200\u20ac \u03c7\u03c9\u03c1\u03af\u03c2 \u03a6\u03a0\u0391. \u0391\u03bd \u03bf \u03a6\u03a0\u0391 \u03b5\u03af\u03bd\u03b1\u03b9 24%, \u03c0\u03bf\u03b9\u03b1 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b7 \u03c4\u03b5\u03bb\u03b9\u03ba\u03ae \u03c4\u03bf\u03c5 \u03c4\u03b9\u03bc\u03ae;<\/p><\/blockquote>\n<p><strong>\u039b\u03cd\u03c3\u03b7<\/strong><\/p>\n<p><strong>1. \u03a6\u03c4\u03b9\u03ac\u03c7\u03bd\u03bf\u03c5\u03bc\u03b5 \u03c4\u03bf\u03bd \u03c0\u03af\u03bd\u03b1\u03ba\u03b1<\/strong>. \u03a0\u03c1\u03bf\u03c3\u03ad\u03c7\u03bf\u03c5\u03bc\u03b5 \u03bd\u03b1 \u03b2\u03ac\u03bb\u03bf\u03c5\u03bc\u03b5 \u03c4\u03bf\u03c5\u03c2 \u03b1\u03c1\u03b9\u03b8\u03bc\u03bf\u03cd\u03c2 \u03c3\u03c4\u03b7 \u03bc\u03af\u03b1 \u03c3\u03c4\u03ae\u03bb\u03b7 \u03c4\u03c9\u03bd \u03a4\u03b9\u03bc\u03ce\u03bd \u03ba\u03b1\u03b9 \u03c4\u03b1 \u03c0\u03bf\u03c3\u03bf\u03c3\u03c4\u03ac \u03c3\u03c4\u03b7\u03bd \u03ac\u03bb\u03bb\u03b7. \u03a3\u03ba\u03b5\u03c6\u03c4\u03cc\u03bc\u03b1\u03c3\u03c4\u03b5: \u0397 \u03c4\u03b9\u03bc\u03ae \u03c4\u03bf\u03c5 \u03c0\u03bf\u03b4\u03b7\u03bb\u03ac\u03c4\u03bf\u03c5 (\u03b1\u03c1\u03c7\u03b9\u03ba\u03ae \u03c4\u03b9\u03bc\u03ae) \u03b5\u03af\u03bd\u03b1\u03b9 200\u20ac \u03ba\u03b1\u03b9 \u03b1\u03bd\u03c4\u03b9\u03c3\u03c4\u03bf\u03b9\u03c7\u03b5\u03af \u03c3\u03c4\u03bf 100%. \u0395\u03bc\u03b5\u03af\u03c2 \u03c8\u03ac\u03c7\u03bd\u03bf\u03c5\u03bc\u03b5 \u03c4\u03b7\u03bd \u03b1\u03be\u03af\u03b1 \u03c4\u03bf\u03c5 \u03a6\u03a0\u0391 (\u03c4\u03bf\u03c5 24%).<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-1006 size-full\" src=\"https:\/\/blogs.e-me.edu.gr\/hive-3o-ds-marmaron-st1\/wp-content\/uploads\/sites\/340509\/2026\/03\/Screenshot-2026-03-28-at-4.18.14-PM.png\" alt=\"\" width=\"892\" height=\"266\" srcset=\"https:\/\/blogs.e-me.edu.gr\/hive-3o-ds-marmaron-st1\/wp-content\/uploads\/sites\/340509\/2026\/03\/Screenshot-2026-03-28-at-4.18.14-PM.png 892w, https:\/\/blogs.e-me.edu.gr\/hive-3o-ds-marmaron-st1\/wp-content\/uploads\/sites\/340509\/2026\/03\/Screenshot-2026-03-28-at-4.18.14-PM-300x89.png 300w, https:\/\/blogs.e-me.edu.gr\/hive-3o-ds-marmaron-st1\/wp-content\/uploads\/sites\/340509\/2026\/03\/Screenshot-2026-03-28-at-4.18.14-PM-768x229.png 768w\" sizes=\"auto, (max-width: 892px) 100vw, 892px\" \/><\/p>\n<p><strong>2. \u039b\u03cd\u03bd\u03bf\u03c5\u03bc\u03b5 \u03c4\u03b7\u03bd \u03b5\u03be\u03af\u03c3\u03c9\u03c3\u03b7:\u00a0<\/strong><\/p>\n<p><strong>100 * x = 24 * 200<\/strong><br \/>\n<strong>100 * x = 4800<\/strong><br \/>\n<strong>x = 4800 : 100<\/strong><br \/>\n<strong>x = 48<\/strong><\/p>\n<p>3. \u039c\u03b1\u03b6\u03b5\u03cd\u03bf\u03c5\u03bc\u03b5 \u03c4\u03b9\u03c2 \u03c0\u03bb\u03b7\u03c1\u03bf\u03c6\u03bf\u03c1\u03af\u03b5\u03c2 \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03bb\u03cd\u03c3\u03bf\u03c5\u03bc\u03b5 \u03c4\u03bf \u03b5\u03c1\u03ce\u03c4\u03b7\u03bc\u03b1: \u039f \u03a6\u03a0\u0391 \u03b5\u03af\u03bd\u03b1\u03b9 48\u20ac \u03ba\u03b1\u03b9 \u03b7 \u03b1\u03c1\u03c7\u03b9\u03ba\u03ae \u03c4\u03b9\u03bc\u03ae \u03b5\u03af\u03bd\u03b1\u03b9 200\u20ac. \u0386\u03c1\u03b1, \u03b7 \u03c4\u03b5\u03bb\u03b9\u03ba\u03ae \u03c4\u03b9\u03bc\u03ae \u03b8\u03b1 \u03b5\u03af\u03bd\u03b1\u03b9:<br \/>\n<strong>200 + 48 =248 \u20ac<\/strong><\/p>\n<h6><\/h6>\n<h6>\u0392. \u0391\u03bd\u03b1\u03b6\u03b7\u03c4\u03ac\u03bc\u03b5 \u03c4\u03b7\u03bd \u0391\u03c1\u03c7\u03b9\u03ba\u03ae \u03a4\u03b9\u03bc\u03ae (\u0393\u03bd\u03c9\u03c1\u03af\u03b6\u03bf\u03c5\u03bc\u03b5 \u03c4\u03b7\u03bd \u03c4\u03b5\u03bb\u03b9\u03ba\u03ae \u03c4\u03b9\u03bc\u03ae \u03ba\u03b1\u03b9 \u03c4\u03bf \u03c0\u03bf\u03c3\u03bf\u03c3\u03c4\u03cc)<\/h6>\n<p data-path-to-node=\"20\">\u0395\u03b4\u03ce \u03be\u03ad\u03c1\u03bf\u03c5\u03bc\u03b5 \u03c4\u03b7\u03bd \u03c4\u03b9\u03bc\u03ae \"\u03bc\u03b5\u03c4\u03ac\" \u03c4\u03b7\u03bd \u03b1\u03bb\u03bb\u03b1\u03b3\u03ae \u03ba\u03b1\u03b9 \u03b8\u03ad\u03bb\u03bf\u03c5\u03bc\u03b5 \u03bd\u03b1 \u03b2\u03c1\u03bf\u03cd\u03bc\u03b5 \u03c4\u03bf \u03b1\u03c1\u03c7\u03b9\u03ba\u03cc \u03bc\u03b1\u03c2 100%, \u03c4\u03bf \u03bf\u03c0\u03bf\u03af\u03bf \u03b5\u03af\u03bd\u03b1\u03b9 \u03ba\u03b1\u03b9 \u03bf \u03ac\u03b3\u03bd\u03c9\u03c3\u03c4\u03bf\u03c2 <span class=\"math-inline\" data-math=\"x\" data-index-in-node=\"111\"><span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">x<\/span><\/span><\/span><\/span><\/span>.<\/p>\n<p data-path-to-node=\"21\"><b data-path-to-node=\"21\" data-index-in-node=\"0\">\u03a0\u03b1\u03c1\u03ac\u03b4\u03b5\u03b9\u03b3\u03bc\u03b1:<\/b><\/p>\n<blockquote data-path-to-node=\"22\">\n<p data-path-to-node=\"22,0\"><i data-path-to-node=\"22,0\" data-index-in-node=\"0\">\u0388\u03bd\u03b1 \u03b6\u03b5\u03c5\u03b3\u03ac\u03c1\u03b9 \u03c0\u03b1\u03c0\u03bf\u03cd\u03c4\u03c3\u03b9\u03b1 \u03c0\u03bf\u03c5\u03bb\u03ae\u03b8\u03b7\u03ba\u03b5 64\u20ac \u03bc\u03b5\u03c4\u03ac \u03b1\u03c0\u03cc \u03ad\u03ba\u03c0\u03c4\u03c9\u03c3\u03b7 20%. \u03a0\u03bf\u03b9\u03b1 \u03ae\u03c4\u03b1\u03bd \u03b7 \u03b1\u03c1\u03c7\u03b9\u03ba\u03ae \u03c4\u03bf\u03c5 \u03c4\u03b9\u03bc\u03ae;<\/i><\/p>\n<\/blockquote>\n<p data-path-to-node=\"23\"><strong><em>\u0395\u03be\u03ae\u03b3\u03b7\u03c3\u03b7: \u0397 \u03b1\u03c1\u03c7\u03b9\u03ba\u03ae \u03c4\u03b9\u03bc\u03ae (\u03c0\u03bf\u03c5 \u03b4\u03b5\u03bd \u03be\u03ad\u03c1\u03bf\u03c5\u03bc\u03b5) \u03b5\u03af\u03bd\u03b1\u03b9 \u03c4\u03bf 100%. <span style=\"text-decoration: underline\">\u0391\u03c6\u03bf\u03cd \u03ad\u03b3\u03b9\u03bd\u03b5 \u03ad\u03ba\u03c0\u03c4\u03c9\u03c3\u03b7 20%, \u03c4\u03b5\u03bb\u03b9\u03ba\u03ac \u03c0\u03bb\u03b7\u03c1\u03ce\u03c3\u03b1\u03bc\u03b5 \u03c4\u03bf 80% \u03c4\u03b7\u03c2 \u03b1\u03be\u03af\u03b1\u03c2 \u03c4\u03bf\u03c5\u03c2 (100% - 20% = <\/span><\/em><span style=\"text-decoration: underline\"><em>80%<\/em>)<\/span>.<\/strong><\/p>\n<p data-path-to-node=\"23\"><strong>\u039b\u03cd\u03c3\u03b7<\/strong><\/p>\n<p data-path-to-node=\"23\"><strong>1. \u03a6\u03c4\u03b9\u03ac\u03c7\u03bd\u03bf\u03c5\u03bc\u03b5 \u03c0\u03af\u03bd\u03b1\u03ba\u03b1 \u03c0\u03bf\u03c3\u03ce\u03bd-\u03c4\u03b9\u03bc\u03ce\u03bd<\/strong><\/p>\n<p data-path-to-node=\"23\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-1007\" src=\"https:\/\/blogs.e-me.edu.gr\/hive-3o-ds-marmaron-st1\/wp-content\/uploads\/sites\/340509\/2026\/03\/Screenshot-2026-03-28-at-4.32.35-PM.png\" alt=\"\" width=\"896\" height=\"256\" srcset=\"https:\/\/blogs.e-me.edu.gr\/hive-3o-ds-marmaron-st1\/wp-content\/uploads\/sites\/340509\/2026\/03\/Screenshot-2026-03-28-at-4.32.35-PM.png 896w, https:\/\/blogs.e-me.edu.gr\/hive-3o-ds-marmaron-st1\/wp-content\/uploads\/sites\/340509\/2026\/03\/Screenshot-2026-03-28-at-4.32.35-PM-300x86.png 300w, https:\/\/blogs.e-me.edu.gr\/hive-3o-ds-marmaron-st1\/wp-content\/uploads\/sites\/340509\/2026\/03\/Screenshot-2026-03-28-at-4.32.35-PM-768x219.png 768w\" sizes=\"auto, (max-width: 896px) 100vw, 896px\" \/><\/p>\n<p data-path-to-node=\"23\"><strong>2. \u039b\u03cd\u03bd\u03bf\u03c5\u03bc\u03b5 \u03c4\u03b7\u03bd \u03b5\u03be\u03af\u03c3\u03c9\u03c3\u03b7<\/strong><\/p>\n<p data-path-to-node=\"23\">80 * x = 64 * 100<br \/>\n80 * x = 6400<br \/>\nx = 6400 : 80<br \/>\nx = 80<\/p>\n<p data-path-to-node=\"23\"><strong>3. \u0391\u03c0\u03ac\u03bd\u03c4\u03b7\u03c3\u03b7: \u0397 \u03b1\u03c1\u03c7\u03b9\u03ba\u03ae \u03c4\u03b9\u03bc\u03ae \u03ae\u03c4\u03b1\u03bd 80\u20ac.\u00a0<\/strong><\/p>\n<div class=\"horizontal-scroll-wrapper\">\n<div class=\"table-block-component\">\n<div class=\"table-block has-export-button new-table-style is-at-scroll-start is-at-scroll-end\">\n<div class=\"table-content not-end-of-paragraph\" data-hveid=\"0\" data-ved=\"0CAAQ3ecQahcKEwii9P393sKTAxUAAAAAHQAAAAAQbw\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<h6><\/h6>\n<h6>\u0393. \u0391\u03bd\u03b1\u03b6\u03b7\u03c4\u03ac\u03bc\u03b5 \u03c4\u03bf \u03c0\u03bf\u03c3\u03bf\u03c3\u03c4\u03cc % (\u0393\u03bd\u03c9\u03c1\u03af\u03b6\u03bf\u03c5\u03bc\u03b5 \u03c4\u03b7\u03bd \u03c4\u03b5\u03bb\u03b9\u03ba\u03ae \u03c4\u03b9\u03bc\u03ae \u03ba\u03b1\u03b9 \u03c4\u03b7\u03bd \u03b1\u03c1\u03c7\u03b9\u03ba\u03ae \u03c4\u03b9\u03bc\u03ae)<\/h6>\n<p data-path-to-node=\"33\">\u03a3\u03b5 \u03b1\u03c5\u03c4\u03ae \u03c4\u03b7\u03bd \u03c0\u03b5\u03c1\u03af\u03c0\u03c4\u03c9\u03c3\u03b7 \u03ad\u03c7\u03bf\u03c5\u03bc\u03b5 \u03cc\u03bb\u03b1 \u03c4\u03b1 \u03bd\u03bf\u03cd\u03bc\u03b5\u03c1\u03b1 \u03c4\u03bf\u03c5 \u03c0\u03c1\u03bf\u03b2\u03bb\u03ae\u03bc\u03b1\u03c4\u03bf\u03c2 \u03ba\u03b1\u03b9 \u03b1\u03c5\u03c4\u03cc \u03c0\u03bf\u03c5 \u03bc\u03b1\u03c2 \u03bb\u03b5\u03af\u03c0\u03b5\u03b9 \u03b5\u03af\u03bd\u03b1\u03b9 \u03c4\u03bf \u03c0\u03bf\u03c3\u03bf\u03c3\u03c4\u03cc. <strong>\u039f \u03ac\u03b3\u03bd\u03c9\u03c3\u03c4\u03bf\u03c2 <span class=\"math-inline\" data-math=\"x\" data-index-in-node=\"167\"><span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">x<\/span><\/span><\/span><\/span><\/span> \u03bc\u03c0\u03b1\u03af\u03bd\u03b5\u03b9 \u03c3\u03c4\u03b7 \u03b3\u03c1\u03b1\u03bc\u03bc\u03ae \u03c4\u03bf\u03c5 \u03c0\u03bf\u03c3\u03bf\u03c3\u03c4\u03bf\u03cd.<\/strong><\/p>\n<p data-path-to-node=\"34\"><b data-path-to-node=\"34\" data-index-in-node=\"0\">\u03a0\u03b1\u03c1\u03ac\u03b4\u03b5\u03b9\u03b3\u03bc\u03b1:<\/b><\/p>\n<blockquote data-path-to-node=\"35\">\n<p data-path-to-node=\"35,0\"><i data-path-to-node=\"35,0\" data-index-in-node=\"0\">\u03a3\u03b5 \u03bc\u03af\u03b1 \u03c4\u03ac\u03be\u03b7 \u03bc\u03b5 25 \u03bc\u03b1\u03b8\u03b7\u03c4\u03ad\u03c2, \u03c5\u03c0\u03ac\u03c1\u03c7\u03bf\u03c5\u03bd 15 \u03ba\u03bf\u03c1\u03af\u03c4\u03c3\u03b9\u03b1. \u03a4\u03b9 \u03c0\u03bf\u03c3\u03bf\u03c3\u03c4\u03cc (%) \u03c4\u03b7\u03c2 \u03c4\u03ac\u03be\u03b7\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 \u03c4\u03b1 \u03ba\u03bf\u03c1\u03af\u03c4\u03c3\u03b9\u03b1;<\/i><\/p>\n<\/blockquote>\n<p data-path-to-node=\"36\"><strong><i data-path-to-node=\"36\" data-index-in-node=\"0\">\u0395\u03be\u03ae\u03b3\u03b7\u03c3\u03b7:<\/i> \u03a4\u03bf \u03c3\u03cd\u03bd\u03bf\u03bb\u03bf \u03c4\u03c9\u03bd \u03bc\u03b1\u03b8\u03b7\u03c4\u03ce\u03bd (25 \u03ac\u03c4\u03bf\u03bc\u03b1) \u03b1\u03bd\u03c4\u03b9\u03c3\u03c4\u03bf\u03b9\u03c7\u03b5\u03af \u03c3\u03c4\u03bf 100%. \u0395\u03bc\u03b5\u03af\u03c2 \u03c8\u03ac\u03c7\u03bd\u03bf\u03c5\u03bc\u03b5 \u03c4\u03bf \u03c0\u03bf\u03c3\u03bf\u03c3\u03c4\u03cc <span class=\"math-inline\" data-math=\"x\" data-index-in-node=\"90\"><span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">x<\/span><\/span><\/span><\/span><\/span> \u03c0\u03bf\u03c5 \u03b1\u03bd\u03c4\u03b9\u03c3\u03c4\u03bf\u03b9\u03c7\u03b5\u03af \u03c3\u03c4\u03b1 15 \u03ba\u03bf\u03c1\u03af\u03c4\u03c3\u03b9\u03b1.<\/strong><\/p>\n<div class=\"horizontal-scroll-wrapper\">\n<div class=\"table-block-component\">\n<div class=\"table-block has-export-button new-table-style is-at-scroll-start is-at-scroll-end\">\n<div class=\"table-content not-end-of-paragraph\" data-hveid=\"0\" data-ved=\"0CAAQ3ecQahcKEwii9P393sKTAxUAAAAAHQAAAAAQcg\">\n<p data-path-to-node=\"23\"><strong>\u039b\u03cd\u03c3\u03b7<\/strong><\/p>\n<p data-path-to-node=\"23\"><strong>1. \u03a6\u03c4\u03b9\u03ac\u03c7\u03bd\u03bf\u03c5\u03bc\u03b5 \u03c0\u03af\u03bd\u03b1\u03ba\u03b1 \u03c0\u03bf\u03c3\u03ce\u03bd-\u03c4\u03b9\u03bc\u03ce\u03bd<\/strong><\/p>\n<p data-path-to-node=\"23\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-1010\" src=\"https:\/\/blogs.e-me.edu.gr\/hive-3o-ds-marmaron-st1\/wp-content\/uploads\/sites\/340509\/2026\/03\/Screenshot-2026-03-28-at-5.03.27-PM.png\" alt=\"\" width=\"898\" height=\"262\" srcset=\"https:\/\/blogs.e-me.edu.gr\/hive-3o-ds-marmaron-st1\/wp-content\/uploads\/sites\/340509\/2026\/03\/Screenshot-2026-03-28-at-5.03.27-PM.png 898w, https:\/\/blogs.e-me.edu.gr\/hive-3o-ds-marmaron-st1\/wp-content\/uploads\/sites\/340509\/2026\/03\/Screenshot-2026-03-28-at-5.03.27-PM-300x88.png 300w, https:\/\/blogs.e-me.edu.gr\/hive-3o-ds-marmaron-st1\/wp-content\/uploads\/sites\/340509\/2026\/03\/Screenshot-2026-03-28-at-5.03.27-PM-768x224.png 768w\" sizes=\"auto, (max-width: 898px) 100vw, 898px\" \/><\/p>\n<p data-path-to-node=\"23\"><strong>2. \u039b\u03cd\u03bd\u03bf\u03c5\u03bc\u03b5 \u03c4\u03b7\u03bd \u03b5\u03be\u03af\u03c3\u03c9\u03c3\u03b7<\/strong><\/p>\n<p data-path-to-node=\"23\">25 * x = 15 * 100<br \/>\n25 * x = 1500<br \/>\nx = 1500 : 25<br \/>\nx = 60<\/p>\n<p data-path-to-node=\"23\"><strong>3. \u0391\u03c0\u03ac\u03bd\u03c4\u03b7\u03c3\u03b7: \u03a4\u03b1 \u03ba\u03bf\u03c1\u03af\u03c4\u03c3\u03b9\u03b1 \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03bf\u03cd\u03bd \u03c4\u03bf 60% \u03c4\u03c9\u03bd \u03bc\u03b1\u03b8\u03b7\u03c4\u03ce\u03bd \u03c4\u03b7\u03c2 \u03c4\u03ac\u03be\u03b7\u03c2.\u00a0<\/strong><\/p>\n<div class=\"horizontal-scroll-wrapper\">\n<div class=\"table-block-component\">\n<div class=\"table-block has-export-button new-table-style is-at-scroll-start is-at-scroll-end\">\n<div class=\"table-content not-end-of-paragraph\" data-hveid=\"0\" data-ved=\"0CAAQ3ecQahcKEwii9P393sKTAxUAAAAAHQAAAAAQbw\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>1. \u0391\u03bd\u03ac\u03bb\u03bf\u03b3\u03b1 \u03a0\u03bf\u03c3\u03ac \u03b1. \u03a4\u03b9 \u03b5\u03af\u03bd\u03b1\u03b9 \u03c4\u03b1 \u03b1\u03bd\u03ac\u03bb\u03bf\u03b3\u03b1 \u03c0\u03bf\u03c3\u03ac; \u0394\u03cd\u03bf \u03c0\u03bf\u03c3\u03ac \u03b5\u03af\u03bd\u03b1\u03b9 \u03b1\u03bd\u03ac\u03bb\u03bf\u03b3\u03b1 \u03cc\u03c4\u03b1\u03bd \u03b1\u03c5\u03be\u03ac\u03bd\u03bf\u03bd\u03c4\u03b1\u03b9 \u03ae \u03bc\u03b5\u03b9\u03ce\u03bd\u03bf\u03bd\u03c4\u03b1\u03b9 \u03bc\u03b5 \u03c4\u03bf\u03bd \u03af\u03b4\u03b9\u03bf \u03b1\u03ba\u03c1\u03b9\u03b2\u03ce\u03c2 \u03c1\u03c5\u03b8\u03bc\u03cc. \u0391\u03bd, \u03b3\u03b9\u03b1 \u03c0\u03b1\u03c1\u03ac\u03b4\u03b5\u03b9\u03b3\u03bc\u03b1, \u03b4\u03b9\u03c0\u03bb\u03b1\u03c3\u03b9\u03ac\u03c3\u03bf\u03c5\u03bc\u03b5 \u03c4\u03bf \u03ad\u03bd\u03b1 \u03c0\u03bf\u03c3\u03cc, \u03b8\u03b1 \u03b4\u03b9\u03c0\u03bb\u03b1\u03c3\u03b9\u03b1\u03c3\u03c4\u03b5\u03af \u03b1\u03c5\u03c4\u03cc\u03bc\u03b1\u03c4\u03b1 \u03ba\u03b1\u03b9 \u03c4\u03bf \u03ac\u03bb\u03bb\u03bf. \u03b2. \u03a0\u03ce\u03c2 \u03bb\u03cd\u03bd\u03bf\u03c5\u03bc\u03b5 &hellip; <\/p>\n<div class=\"more-link-wrapper\"><a href=\"https:\/\/blogs.e-me.edu.gr\/hive-3o-ds-marmaron-st1\/2026\/03\/28\/%ce%bc%ce%b1%ce%b8%ce%b7%ce%bc%ce%b1%cf%84%ce%b9%ce%ba%ce%ac-%cf%80%cf%81%ce%bf%ce%b5%cf%84%ce%bf%ce%b9%ce%bc%ce%b1%cf%83%ce%af%ce%b1-%ce%b3%ce%b9%ce%b1-%ce%b4%ce%b9%ce%b1%ce%b3%cf%8e%ce%bd%ce%b9\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;\u039c\u03b1\u03b8\u03b7\u03bc\u03b1\u03c4\u03b9\u03ba\u03ac &#8211; \u03a0\u03c1\u03bf\u03b5\u03c4\u03bf\u03b9\u03bc\u03b1\u03c3\u03af\u03b1 \u03b3\u03b9\u03b1 \u0394\u03b9\u03b1\u03b3\u03ce\u03bd\u03b9\u03c3\u03bc\u03b1 &#8211; \u0391\u03bd\u03ac\u03bb\u03bf\u03b3\u03b1 \u03ba\u03b1\u03b9 \u03b1\u03bd\u03c4\u03b9\u03c3\u03c4\u03c1\u03cc\u03c6\u03c9\u03c2 \u03b1\u03bd\u03ac\u03bb\u03bf\u03b3\u03b1 \u03c0\u03bf\u03c3\u03ac, \u03a0\u03c1\u03bf\u03b2\u03bb\u03ae\u03bc\u03b1\u03c4\u03b1 \u03bc\u03b5 \u03c0\u03bf\u03c3\u03bf\u03c3\u03c4\u03ac&#8221;<\/span><\/a><\/div>\n","protected":false},"author":10600,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-1002","post","type-post","status-publish","format-standard","hentry","category-3"],"_links":{"self":[{"href":"https:\/\/blogs.e-me.edu.gr\/hive-3o-ds-marmaron-st1\/wp-json\/wp\/v2\/posts\/1002","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blogs.e-me.edu.gr\/hive-3o-ds-marmaron-st1\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blogs.e-me.edu.gr\/hive-3o-ds-marmaron-st1\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blogs.e-me.edu.gr\/hive-3o-ds-marmaron-st1\/wp-json\/wp\/v2\/users\/10600"}],"replies":[{"embeddable":true,"href":"https:\/\/blogs.e-me.edu.gr\/hive-3o-ds-marmaron-st1\/wp-json\/wp\/v2\/comments?post=1002"}],"version-history":[{"count":0,"href":"https:\/\/blogs.e-me.edu.gr\/hive-3o-ds-marmaron-st1\/wp-json\/wp\/v2\/posts\/1002\/revisions"}],"wp:attachment":[{"href":"https:\/\/blogs.e-me.edu.gr\/hive-3o-ds-marmaron-st1\/wp-json\/wp\/v2\/media?parent=1002"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blogs.e-me.edu.gr\/hive-3o-ds-marmaron-st1\/wp-json\/wp\/v2\/categories?post=1002"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blogs.e-me.edu.gr\/hive-3o-ds-marmaron-st1\/wp-json\/wp\/v2\/tags?post=1002"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}