{"id":2986,"date":"2012-06-18T12:00:21","date_gmt":"2012-06-18T15:00:21","guid":{"rendered":"http:\/\/scienceblogs.com.br\/hypercubic\/?p=2986"},"modified":"2012-06-18T12:00:21","modified_gmt":"2012-06-18T15:00:21","slug":"enigma-jovem-ainda-jovem-ainda","status":"publish","type":"post","link":"https:\/\/www.blogs.unicamp.br\/hypercubic\/2012\/06\/enigma-jovem-ainda-jovem-ainda\/","title":{"rendered":"[Enigma] Jovem ainda, jovem ainda&#8230;"},"content":{"rendered":"<p align=\"justify\">Em 1993, na primeira edi\u00e7\u00e3o do evento <em>Gathering for Gardner<\/em> \u2014 esp\u00e9cie de conven\u00e7\u00e3o de matem\u00e1tica recreativa em homenagem a Martin Gardner (1914-2010) \u2014, David Singmaster apresentou o seguinte enigma:<\/p>\n<blockquote>\n<p align=\"justify\"><span style=\"font-family: Georgia\">Minha filha Jessica tem 16 anos e est\u00e1 bastante ciente de sua idade. Nossa vizinha Helen tem apenas 8 e eu provoquei Jessica dizendo-lhe: \u201cSete anos atr\u00e1s, voc\u00ea era 9 vezes mais velha que Helen; h\u00e1 seis anos, voc\u00ea tinha 5 vezes a idade dela; h\u00e1 quatro, voc\u00ea tinha o triplo da idade dela e agora voc\u00ea tem apenas o dobro. Se voc\u00ea n\u00e3o se cuidar, logo voc\u00eas duas ter\u00e3o a mesma idade!\u201d<\/span><\/p>\n<p align=\"justify\"><span style=\"font-family: Georgia\">Jessica ficou aborrecida e saiu murmurando. Ent\u00e3o eu a vi fazer alguns rabiscos.<\/span><\/p>\n<p align=\"justify\"><span style=\"font-family: Georgia\">No dia seguinte, ela disse pra mim: \u201cPai, esse \u00e9 o limite! Ali\u00e1s, voc\u00ea chegou a considerar quando eu teria metade da idade de Helen?\u201d Agora era a minha vez de ficar aborrecido e eu \u00e9 que comecei a murmurar \u2013 \u201cIsso \u00e9 imposs\u00edvel, voc\u00ea \u00e9 sempre mais velha que Helen.\u201d<\/span><\/p>\n<p align=\"justify\"><span style=\"font-family: Georgia\">\u201cN\u00e3o seja t\u00e3o positivo\u201d, disse Jessica, saindo para a escola.<\/span><\/p>\n<p align=\"justify\"><span style=\"font-family: Georgia\">Voc\u00eas podem me ajudar?<\/span><\/p>\n<\/blockquote>\n","protected":false},"excerpt":{"rendered":"<p>Em 1993, na primeira edi\u00e7\u00e3o do evento Gathering for Gardner \u2014 esp\u00e9cie de conven\u00e7\u00e3o de matem\u00e1tica recreativa em homenagem a Martin Gardner (1914-2010) \u2014, David Singmaster apresentou o seguinte enigma: Minha filha Jessica tem 16 anos e est\u00e1 bastante ciente de sua idade. Nossa vizinha Helen tem apenas 8 e eu provoquei Jessica dizendo-lhe: \u201cSete [&hellip;]<\/p>\n","protected":false},"author":486,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_eb_attr":"","_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"material-hide-sections":[],"pgc_sgb_lightbox_settings":"","_vp_format_video_url":"","_vp_image_focal_point":[],"footnotes":""},"categories":[99],"tags":[],"class_list":["post-2986","post","type-post","status-publish","format-standard","hentry","category-enigmas"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>[Enigma] Jovem ainda, jovem ainda... - hypercubic<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.blogs.unicamp.br\/hypercubic\/2012\/06\/enigma-jovem-ainda-jovem-ainda\/\" \/>\n<meta name=\"twitter:label1\" content=\"Escrito por\" \/>\n\t<meta name=\"twitter:data1\" content=\"Renato Pincelli\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. tempo de leitura\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minuto\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.blogs.unicamp.br\\\/hypercubic\\\/2012\\\/06\\\/enigma-jovem-ainda-jovem-ainda\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.blogs.unicamp.br\\\/hypercubic\\\/2012\\\/06\\\/enigma-jovem-ainda-jovem-ainda\\\/\"},\"author\":{\"name\":\"Renato Pincelli\",\"@id\":\"https:\\\/\\\/www.blogs.unicamp.br\\\/hypercubic\\\/#\\\/schema\\\/person\\\/c7be1e2811d061a75d3b4f4960eb53bd\"},\"headline\":\"[Enigma] Jovem ainda, jovem ainda&#8230;\",\"datePublished\":\"2012-06-18T15:00:21+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.blogs.unicamp.br\\\/hypercubic\\\/2012\\\/06\\\/enigma-jovem-ainda-jovem-ainda\\\/\"},\"wordCount\":188,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/www.blogs.unicamp.br\\\/hypercubic\\\/#organization\"},\"articleSection\":[\"enigmas\"],\"inLanguage\":\"pt-BR\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/www.blogs.unicamp.br\\\/hypercubic\\\/2012\\\/06\\\/enigma-jovem-ainda-jovem-ainda\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.blogs.unicamp.br\\\/hypercubic\\\/2012\\\/06\\\/enigma-jovem-ainda-jovem-ainda\\\/\",\"url\":\"https:\\\/\\\/www.blogs.unicamp.br\\\/hypercubic\\\/2012\\\/06\\\/enigma-jovem-ainda-jovem-ainda\\\/\",\"name\":\"[Enigma] Jovem ainda, jovem ainda... - 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