{"id":45704,"date":"2015-09-12T14:34:40","date_gmt":"2015-09-12T17:34:40","guid":{"rendered":"http:\/\/clubes.obmep.org.br\/blog\/?page_id=45704"},"modified":"2023-03-29T03:23:07","modified_gmt":"2023-03-29T06:23:07","slug":"problema-pilhas-de-pratos","status":"publish","type":"page","link":"https:\/\/clubes.obmep.org.br\/blog\/problema-pilhas-de-pratos\/","title":{"rendered":".Problema: Pilhas de Pratos"},"content":{"rendered":"\n<p style=\"margin:20px\">\n<div class=\"g1n\">\n<p class=\"tit\" style=\"line-height:25px;margin:10px\">Problema<br \/>\n<span style=\"font-size:12px;color:#800000\"> (Indicado a partir do 6\u00ba ano do E. F.)<\/span><\/p>\n<hr style=\"height:1px; width:100%;background-color:#800000; margin-top: 10px; margin-bottom: 20px;border: 0 none\"\/>\nEm um restaurante h\u00e1 10 pilhas de pratos, numeradas de 1 a 10, com 10 pratos cada uma.<br \/>\nNuma das pilhas, por um erro de fabrica\u00e7\u00e3o, cada prato tem 90 gramas; nas outras 9 pilhas, cada prato tem 100 gramas.<br \/>\nDescreva como proceder para se descobrir em qual das pilhas est\u00e3o os pratos defeituosos, fazendo uma \u00fanica pesagem numa balan\u00e7a de ponteiro na qual se pode colocar at\u00e9 6 quilogramas.<\/p>\n<p style=\"margin:10px\">\n<\/div>\n<p style=\"margin:30px\">\n<div class=\"g1n\" style=\"line-height:30px;\">\n<p class=\"tit\" style=\"line-height:30px;margin:10px\">Solu\u00e7\u00e3o<\/p>\n<hr style=\"height:1px; width:100%;background-color:#800000; margin-top: 10px; margin-bottom: 20px;border: 0 none\"\/>\nBasta colocar na balan\u00e7a, por exemplo, [tex]1[\/tex] prato da primeira pilha, [tex]2[\/tex] pratos da segunda pilha, [tex]3[\/tex] da terceira, e assim por diante, at\u00e9 colocar [tex]10[\/tex] pratos da d\u00e9cima pilha.<br \/>\nSe n\u00e3o houvesse pratos defeituosos, a balan\u00e7a deveria marcar [tex]5,5[\/tex] kg. Da\u00ed, analisando a diferen\u00e7a entre [tex]5,5[\/tex] kg e o peso encontrado, consegue-se descobrir quantos pratos defeituosos foram colocados na balan\u00e7a e, consequentemente, de qual pilha eles vieram.<\/p>\n<hr style=\"height:1px; width:100%;background-color:#800000; margin-top: 10px; margin-bottom: 15px;border: 0 none\"\/>\n<p class=\"g2\">Solu\u00e7\u00e3o elaborada pelos <strong>Moderadores do Blog<\/strong>.<\/p>\n<\/div>\n<p style=\"margin:30px\">\n<div class=\"g1n\" style=\"line-height:30px;\">\n<p class=\"tit\" style=\"line-height:30px;margin:10px\">Simula\u00e7\u00e3o<\/p>\n<hr style=\"height:1px; width:100%;background-color:#800000; margin-top: 10px; margin-bottom: 20px;border: 0 none\"\/>\nObservem todas as dez simula\u00e7\u00f5es da estrat\u00e9gia apresentada para que voc\u00eas tenham certeza de que o procedimento resolve, de fato, o problema. Os valores est\u00e3o expressos em gramas ([tex]1\\,kg=1\\,000\\,g[\/tex]).<br \/>\nAs c\u00e9lulas coloridas ajudam a identificar a pilha que cont\u00e9m os pratos defeituosos.<\/p>\n<p style=\"margin:20px\">\n<div style=\"text-align:center;\">\n<table  style=\" margin-left: auto; margin-right: auto; width:85%; font-size:10px;\">\n<tr style=\"background-color: #EECFA1;\">\n<td width=\"64px\"><strong>Simula\u00e7\u00f5es<\/strong><\/td>\n<td width=\"51px\"><strong>Correto<\/strong><\/td>\n<td width=\"49px\"><strong>Sim.1<\/strong><\/td>\n<td width=\"64px\"><strong>Sim.2<\/strong><\/td>\n<td width=\"64px\"><strong>Sim.3<\/strong><\/td>\n<td width=\"64px\"><strong>Sim.4<\/strong><\/td>\n<td width=\"64px\"><strong>Sim.5<\/strong><\/td>\n<td width=\"64px\"><strong>Sim.6<\/strong><\/td>\n<td width=\"64px\"><strong>Sim.7<\/strong><\/td>\n<td width=\"64px\"><strong>Sim.8<\/strong><\/td>\n<td width=\"64px\"><strong>Sim.9<\/strong><\/td>\n<td width=\"64px\"><strong>Sim.10<\/strong><\/td>\n<\/tr>\n<tr>\n<td width=\"64px\" style=\"background-color: #CDC9C9;\">Pilha 10<\/td>\n<td width=\"51px\">1000<\/td>\n<td width=\"49px\">1000<\/td>\n<td width=\"64px\">1000<\/td>\n<td width=\"64px\">1000<\/td>\n<td width=\"64px\">1000<\/td>\n<td width=\"64px\">1000<\/td>\n<td width=\"64px\">1000<\/td>\n<td width=\"64px\">1000<\/td>\n<td width=\"64px\">1000<\/td>\n<td width=\"64px\">1000<\/td>\n<td width=\"64px\" style=\"background-color: #f66;\">900<\/td>\n<\/tr>\n<tr>\n<td  style=\"background-color: #CDC9C9;\">Pilha 9<\/td>\n<td>900<\/td>\n<td>900<\/td>\n<td>900<\/td>\n<td>900<\/td>\n<td>900<\/td>\n<td>900<\/td>\n<td>900<\/td>\n<td>900<\/td>\n<td>900<\/td>\n<td style=\"background-color: #f66;\">810<\/td>\n<td>900<\/td>\n<\/tr>\n<tr>\n<td  style=\"background-color: #CDC9C9;\">Pilha 8<\/td>\n<td>800<\/td>\n<td>800<\/td>\n<td>800<\/td>\n<td>800<\/td>\n<td>800<\/td>\n<td>800<\/td>\n<td>800<\/td>\n<td>800<\/td>\n<td style=\"background-color: #f66;\">720<\/td>\n<td>800<\/td>\n<td>800<\/td>\n<\/tr>\n<tr>\n<td  style=\"background-color: #CDC9C9;\">Pilha 7<\/td>\n<td>700<\/td>\n<td>700<\/td>\n<td>700<\/td>\n<td>700<\/td>\n<td>700<\/td>\n<td>700<\/td>\n<td>700<\/td>\n<td style=\"background-color: #f66;\">630<\/td>\n<td>700<\/td>\n<td>700<\/td>\n<td>700<\/td>\n<\/tr>\n<tr>\n<td  style=\"background-color: #CDC9C9;\">Pilha 6<\/td>\n<td>600<\/td>\n<td>600<\/td>\n<td>600<\/td>\n<td>600<\/td>\n<td>600<\/td>\n<td>600<\/td>\n<td style=\"background-color: #f66;\">540<\/td>\n<td>600<\/td>\n<td>600<\/td>\n<td>600<\/td>\n<td>600<\/td>\n<\/tr>\n<tr>\n<td  style=\"background-color: #CDC9C9;\">Pilha 5<\/td>\n<td>500<\/td>\n<td>500<\/td>\n<td>500<\/td>\n<td>500<\/td>\n<td>500<\/td>\n<td style=\"background-color: #f66;\">450<\/td>\n<td>500<\/td>\n<td>500<\/td>\n<td>500<\/td>\n<td>500<\/td>\n<td>500<\/td>\n<\/tr>\n<tr>\n<td  style=\"background-color: #CDC9C9;\">Pilha 4<\/td>\n<td>400<\/td>\n<td>400<\/td>\n<td>400<\/td>\n<td>400<\/td>\n<td style=\"background-color: #f66;\">360<\/td>\n<td>400<\/td>\n<td>400<\/td>\n<td>400<\/td>\n<td>400<\/td>\n<td>400<\/td>\n<td>400<\/td>\n<\/tr>\n<tr>\n<td  style=\"background-color: #CDC9C9;\">Pilha 3<\/td>\n<td>300<\/td>\n<td>300<\/td>\n<td>300<\/td>\n<td style=\"background-color: #f66;\">270<\/td>\n<td>300<\/td>\n<td>300<\/td>\n<td>300<\/td>\n<td>300<\/td>\n<td>300<\/td>\n<td>300<\/td>\n<td>300<\/td>\n<\/tr>\n<tr>\n<td  style=\"background-color: #CDC9C9;\">Pilha 2<\/td>\n<td>200<\/td>\n<td>200<\/td>\n<td style=\"background-color: #f66;\">180<\/td>\n<td>200<\/td>\n<td>200<\/td>\n<td>200<\/td>\n<td>200<\/td>\n<td>200<\/td>\n<td>200<\/td>\n<td>200<\/td>\n<td>200<\/td>\n<\/tr>\n<tr>\n<td  style=\"background-color: #CDC9C9;\">Pilha 1<\/td>\n<td>100<\/td>\n<td style=\"background-color: #f66;\">90<\/td>\n<td>100<\/td>\n<td>100<\/td>\n<td>100<\/td>\n<td>100<\/td>\n<td>100<\/td>\n<td>100<\/td>\n<td>100<\/td>\n<td>100<\/td>\n<td>100<\/td>\n<\/tr>\n<tr style=\"background-color: #EECFA1;\">\n<td><strong>Total<\/strong><\/td>\n<td><strong>5500<\/strong><\/td>\n<td><strong>5490<\/strong><\/td>\n<td><strong>5480<\/strong><\/td>\n<td><strong>5470<\/strong><\/td>\n<td><strong>5460<\/strong><\/td>\n<td><strong>5450<\/strong><\/td>\n<td><strong>5440<\/strong><\/td>\n<td><strong>5430<\/strong><\/td>\n<td><strong>5420<\/strong><\/td>\n<td><strong>5410<\/strong><\/td>\n<td><strong>5400<\/strong><\/td>\n<\/tr>\n<\/table>\n<\/div>\n<p style=\"margin:20px\">\n<\/div>\n<p style=\"margin:10px\">\n","protected":false},"excerpt":{"rendered":"<p>Problema (Indicado a partir do 6\u00ba ano do E. F.) Em um restaurante h\u00e1 10 pilhas de pratos, numeradas de 1 a 10, com 10 pratos cada uma. Numa das pilhas, por um erro de fabrica\u00e7\u00e3o, cada prato tem 90 gramas; nas outras 9 pilhas, cada prato tem 100 gramas. Descreva como proceder para se &hellip; <\/p>\n<p><a class=\"more-link btn\" href=\"https:\/\/clubes.obmep.org.br\/blog\/problema-pilhas-de-pratos\/\">Continue lendo<\/a><\/p>\n","protected":false},"author":164,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"open","ping_status":"closed","template":"template-onecolumn.php","meta":{"footnotes":""},"class_list":["post-45704","page","type-page","status-publish","hentry","nodate","item-wrap"],"_links":{"self":[{"href":"https:\/\/clubes.obmep.org.br\/blog\/wp-json\/wp\/v2\/pages\/45704","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/clubes.obmep.org.br\/blog\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/clubes.obmep.org.br\/blog\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/clubes.obmep.org.br\/blog\/wp-json\/wp\/v2\/users\/164"}],"replies":[{"embeddable":true,"href":"https:\/\/clubes.obmep.org.br\/blog\/wp-json\/wp\/v2\/comments?post=45704"}],"version-history":[{"count":44,"href":"https:\/\/clubes.obmep.org.br\/blog\/wp-json\/wp\/v2\/pages\/45704\/revisions"}],"predecessor-version":[{"id":185714,"href":"https:\/\/clubes.obmep.org.br\/blog\/wp-json\/wp\/v2\/pages\/45704\/revisions\/185714"}],"wp:attachment":[{"href":"https:\/\/clubes.obmep.org.br\/blog\/wp-json\/wp\/v2\/media?parent=45704"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}