{"id":8920,"date":"2011-10-07T02:00:33","date_gmt":"2011-10-07T09:00:33","guid":{"rendered":"https:\/\/gmatclub.com\/blog\/?p=8920"},"modified":"2011-10-07T01:08:09","modified_gmt":"2011-10-07T08:08:09","slug":"gmat-question-of-the-day-oct-7-arithmetic-and-critical-reasoning","status":"publish","type":"post","link":"https:\/\/gmatclub.com\/blog\/gmat-question-of-the-day-oct-7-arithmetic-and-critical-reasoning\/","title":{"rendered":"GMAT Question of the Day (Oct 7): Arithmetic and Critical Reasoning"},"content":{"rendered":"<p><strong>Math (DS)<\/strong><\/p>\n<p>Are integers <img src='https:\/\/s0.wp.com\/latex.php?latex=x&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='x' title='x' class='latex' \/>, <img src='https:\/\/s0.wp.com\/latex.php?latex=y&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='y' title='y' class='latex' \/>, and <img src='https:\/\/s0.wp.com\/latex.php?latex=z&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='z' title='z' class='latex' \/> consecutive?<\/p>\n<p>1. <img src='https:\/\/s0.wp.com\/latex.php?latex=y&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='y' title='y' class='latex' \/> equals the arithmetic mean of <img src='https:\/\/s0.wp.com\/latex.php?latex=x&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='x' title='x' class='latex' \/> and <img src='https:\/\/s0.wp.com\/latex.php?latex=z&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='z' title='z' class='latex' \/><br \/>\n2. <img src='https:\/\/s0.wp.com\/latex.php?latex=x+%3D+-z&#038;bg=ffffff&#038;fg=000000&#038;s=0' alt='x = -z' title='x = -z' class='latex' \/><\/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\">Join GMAT Pill for a free GMAT Strategy Chat on October 7, 2011 at 5pm EST. <a href=\"https:\/\/gmatclub.com\/static\/forward.php?r=https:\/\/www.gmatpill.com\/the-gmat-pill-method\/1-gmat-strategy\/\" style=\"color: rgb(0, 0, 255);\"><u>Learn more!<\/u><\/a><\/li>\n<li style=\"padding: 0pt 0pt 10px 20px; color: rgb(255, 255, 255); list-style-type: disc\">Get $100 off a Manhattan GMAT course with the code GCLUB100! <a href=\"https:\/\/gmatclub.com\/marketplace\/courses.xhtml#mgmat\" style=\"color: rgb(0, 0, 255);\"><u>Sign up now!<\/u><\/a><\/li>\n<li style=\"padding: 0pt 0pt 0px 20px; color: rgb(255, 255, 255); list-style-type: disc\">mbaMission is offering a unique MBA application writing class, \"Constructing a Standout MBA Application Boot Camp.\" <a href=\"https:\/\/gmatclub.com\/static\/forward.php?r=https:\/\/www.mbamission.com\/services.php?package=8\" style=\"color: rgb(0, 0, 255);\"><u>Learn more and sign up today!<\/u><\/a><\/li>\n<\/ul>\n<\/div>\n<p><\/p>\n<p><strong>Verbal (CR)<\/strong><\/p>\n<p>The Earth\u2019s rivers constantly carry dissolved salts into its oceans. Clearly, therefore, by taking the resulting increase in salt levels in the oceans over the past hundred years and then determining how many centuries of such increases it would have taken the oceans to reach current salt levels from a hypothetical initial salt-free state, the maximum age of the Earth\u2019s oceans can be accurately estimated.<\/p>\n<p>Which of the following is an assumption on which the argument depends?<\/p>\n<p>(A) The quantities of dissolved salts deposited by rivers in the Earth\u2019s oceans have not been unusually large during the past hundred years.<br \/>\n(B) At any given time, all the Earth\u2019s rivers have about the same salt levels.<br \/>\n(C) There are salts that leach into the Earth\u2019s oceans directly from the ocean floor.<br \/>\n(D) There is no method superior to that based on salt levels for estimating the maximum age of the Earth\u2019s oceans.<br \/>\n(E) None of the salts carried into the Earth\u2019s oceans by rivers are used up by biological activity in the oceans.<\/p>\n<div style=\"color:#cecece\">\nAnswers to the questions: <strong>E<\/strong>, <strong>A<\/strong><br \/>\nFor explanations please see these threads: <a href=\"https:\/\/gmatclub.com\/forum\/m03-q33-72363.html\">math<\/a> and <a href=\"https:\/\/gmatclub.com\/forum\/cr-salt-content-68881.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 (DS) Are integers , , and consecutive? 1. equals the arithmetic mean of and 2. GMAT Daily Deals Join GMAT Pill for a free GMAT Strategy Chat on October&#8230;<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[152,9,721,718],"tags":[],"class_list":["post-8920","post","type-post","status-publish","format-standard","hentry","category-gmat-tests","category-gmat","category-critical-reasoning-gmat","category-data-sufficiency-gmat","entry"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/gmatclub.com\/blog\/wp-json\/wp\/v2\/posts\/8920","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=8920"}],"version-history":[{"count":1,"href":"https:\/\/gmatclub.com\/blog\/wp-json\/wp\/v2\/posts\/8920\/revisions"}],"predecessor-version":[{"id":8921,"href":"https:\/\/gmatclub.com\/blog\/wp-json\/wp\/v2\/posts\/8920\/revisions\/8921"}],"wp:attachment":[{"href":"https:\/\/gmatclub.com\/blog\/wp-json\/wp\/v2\/media?parent=8920"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gmatclub.com\/blog\/wp-json\/wp\/v2\/categories?post=8920"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gmatclub.com\/blog\/wp-json\/wp\/v2\/tags?post=8920"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}