{"id":7969,"date":"2011-07-20T02:00:48","date_gmt":"2011-07-20T09:00:48","guid":{"rendered":"https:\/\/gmatclub.com\/blog\/?p=7969"},"modified":"2011-07-20T03:01:27","modified_gmt":"2011-07-20T10:01:27","slug":"gmat-question-of-the-day-jul-20-mixture-problem-and-critical-reasoning","status":"publish","type":"post","link":"https:\/\/gmatclub.com\/blog\/gmat-question-of-the-day-jul-20-mixture-problem-and-critical-reasoning\/","title":{"rendered":"GMAT Question of the Day (Jul 20): Mixture Problem and Critical Reasoning"},"content":{"rendered":"<p><strong>Math (PS)<\/strong><\/p>\n<p>There are two bars of gold-silver alloy; one piece has 2 parts of gold to 3 parts of silver, and the other has 3 parts of gold to 7 parts of silver. If both bars are melted into a 8-kg bar with the final ratio of 5:11 (gold to silver), what was the weight of the first bar?<\/p>\n<p>(A) 1 kg<br \/>\n(B) 3 kg<br \/>\n(C) 5 kg<br \/>\n(D) 6 kg<br \/>\n(E) 7 kg<\/p>\n<div style=\"background-color: rgb(141, 179, 226); border-top: 4px solid rgb(0, 0, 0); border-bottom: 4px solid rgb(0, 0, 0); padding: 5px; margin-left: 20px; font-size: 15px; font-family: Gergia,serif; font-weight: bold\">\n<div style=\"font-size: 19px; color: rgb(255, 255, 255); margin-bottom: 10px; padding-left: 10px\">GMAT Daily Deals<\/div>\n<ul>\n<li style=\"padding: 0pt 0pt 10px 20px; color: rgb(255, 255, 255); list-style-type: disc\">Experience the Manhattan GMAT difference at one of the free trial classes. Attend the first session to get discounts. <a href=\"https:\/\/gmatclub.com\/static\/forward.php?r=https:\/\/www.manhattangmat.com\/gmat-club.cfm\" style=\"color: rgb(0, 0, 255);\"><u>Learn more!<\/u><\/a><\/li>\n<li style=\"padding: 0pt 0pt 0px 20px; color: rgb(255, 255, 255); list-style-type: disc\">Last change to enter the 2011 <a href=\"https:\/\/gmatclub.com\/static\/forward.php?r=https:\/\/twitter.com\/stacyblackman\" style=\"color: rgb(0, 0, 255);\"><u>@stacyblackman<\/u><\/a> Consulting Challenge: 2 scholarship packages valued at over $11,000. Enter to win by 7\/20. <a href=\"https:\/\/gmatclub.com\/static\/forward.php?r=https:\/\/www.stacyblackman.com\/the-sbc-challenge\/\" style=\"color: rgb(0, 0, 255);\"><u>Enter to win<\/u><\/a>.<\/li>\n<\/ul>\n<\/div>\n<p><\/p>\n<p><strong>Verbal (CR)<\/strong><\/p>\n<p>In a monogamous culture, 100% of the adults are married. The average number of children per family is five and over-population is a threat. Programs to encourage birth-control have been ineffective. It has been suggested that this failure is due to these programs ignoring a tradition that values male children very highly, so that every parent wants to have at least one son. It is proposed that couples be encouraged to use birth-control measures after the birth of their first son. <\/p>\n<p>If this proposal is widely accepted in the culture, we may expect that:<\/p>\n<p>(A) the rate of population increase will be slowed, and future generations will contain a disproportionately high number of females.<br \/>\n(B) the rate of population increase will be slowed, and the gender balance in future generations will remain as it is at present.<br \/>\n(C) the rate of population growth will remain the same, and future generations will contain a disproportionately high number of females.<br \/>\n(D) there will be no significant effect either on population growth or on gender balance.<br \/>\n(E) the population will decline precipitously, because approximately half of all families will have only a single child.<\/p>\n<div style=\"color:#cecece\">\nAnswers to the questions: <strong>A<\/strong>, <strong>B<\/strong><br \/>\nFor explanations please see these threads: <a href=\"https:\/\/gmatclub.com\/forum\/m03-q30-74806.html\">math<\/a> and <a href=\"https:\/\/gmatclub.com\/forum\/cr-monogamous-culture-source-66058.html\">verbal<\/a>\n<\/div>\n<p><\/p>\n<p><strong>Like these questions?<\/strong> Get the GMAT Club question collection: <a href=\"https:\/\/gmatclub.com\/tests\/\">online at GMAT Club<\/a> OR <a href=\"https:\/\/www.amazon.com\/gp\/redirect.html?ie=UTF8&location=http%3A%2F%2Fwww.amazon.com%2Fgp%2Fentity%2FGMAT-Club%2FB0048PPF3U%3Fie%3DUTF8%26ref_%3Dntt_athr_dp_pel_1&tag=gmatclub-20&linkCode=ur2&camp=1789&creative=390957\">on your Kindle<\/a> OR <a href=\"https:\/\/click.linksynergy.com\/fs-bin\/stat?id=PJTlq5NYqfE&offerid=146261&type=3&subid=blog&tmpid=1826&RD_PARM1=http%253A%252F%252Fitunes.apple.com%252Fus%252Fapp%252Fgmat-toolkit%252Fid328345537%253Fmt%253D8%2526uo%253D6%2526partnerId%253D30\">on your iPhone\/iPad<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Math (PS) There are two bars of gold-silver alloy; one piece has 2 parts of gold to 3 parts of silver, and the other has 3 parts of gold to&#8230;<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[152,9,721,717],"tags":[],"class_list":["post-7969","post","type-post","status-publish","format-standard","hentry","category-gmat-tests","category-gmat","category-critical-reasoning-gmat","category-problem-solving-gmat","entry"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/gmatclub.com\/blog\/wp-json\/wp\/v2\/posts\/7969","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/gmatclub.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/gmatclub.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/gmatclub.com\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/gmatclub.com\/blog\/wp-json\/wp\/v2\/comments?post=7969"}],"version-history":[{"count":2,"href":"https:\/\/gmatclub.com\/blog\/wp-json\/wp\/v2\/posts\/7969\/revisions"}],"predecessor-version":[{"id":13124,"href":"https:\/\/gmatclub.com\/blog\/wp-json\/wp\/v2\/posts\/7969\/revisions\/13124"}],"wp:attachment":[{"href":"https:\/\/gmatclub.com\/blog\/wp-json\/wp\/v2\/media?parent=7969"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gmatclub.com\/blog\/wp-json\/wp\/v2\/categories?post=7969"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gmatclub.com\/blog\/wp-json\/wp\/v2\/tags?post=7969"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}