tag:blogger.com,1999:blog-8818940027069843379.post8141500810610380656..comments2023-09-20T00:55:46.172-07:00Comments on GMAT QUANT PROBLEMS - GMAT TUTORING arigoldberg80@gmail.com: Problem 34 - GMAT StatisticsAriel Goldberghttp://www.blogger.com/profile/05729756898269014290noreply@blogger.comBlogger8125tag:blogger.com,1999:blog-8818940027069843379.post-16873466647736295212017-06-05T03:12:50.940-07:002017-06-05T03:12:50.940-07:00GMAT coaching | Best GMAT Coaching Centre |
The...<a href="http://www.top-one-percent.com/" rel="nofollow"><b>GMAT coaching </b></a> | <a href="http://www.top-one-percent.com/" rel="nofollow"><b>Best GMAT Coaching Centre</b></a> | <br />The post is useful and it would really help for those who search for .. <a href="http://sandeepguptareviews.blogspot.in/" rel="nofollow"><b>Sandeep Gupta</b></a> | <a href="http://sandeepguptareviews.blogspot.in/" rel="nofollow"><b>Top One Percent Gmat</b></a>Anonymoushttps://www.blogger.com/profile/15829974749629605077noreply@blogger.comtag:blogger.com,1999:blog-8818940027069843379.post-1642237491916208292011-01-03T05:41:54.944-08:002011-01-03T05:41:54.944-08:00@vikram: Pl note that avg= (F+L)/2 only if they ar...@vikram: Pl note that avg= (F+L)/2 only if they are said to be consecutive...<br /><br />eg: 2,6,8 avg is not 5 but 5.333Ink Slingerhttps://www.blogger.com/profile/03147908020674115146noreply@blogger.comtag:blogger.com,1999:blog-8818940027069843379.post-86275857826347357442010-09-22T13:52:14.757-07:002010-09-22T13:52:14.757-07:00Explanation of answer choice A
F = First number
L ...Explanation of answer choice A<br />F = First number<br />L = Last number<br />1:<br />AVG: (F+L)/2<br />Range = L-F<br />L=3F or L=12<br />4,5,6,7,8,9,10,11,12 : Avg =8, Range=8<br />2: Average is 8 . Not sufficient (Eventhough it is the right average) Per this the soln could be<br />4,8,12, or 4,5,6,7,8,9,10,11,12Vikram Sikandhttps://www.blogger.com/profile/00380167680292278811noreply@blogger.comtag:blogger.com,1999:blog-8818940027069843379.post-46243662895470848012010-03-13T16:53:54.209-08:002010-03-13T16:53:54.209-08:00This comment has been removed by the author.Vikram Sikandhttps://www.blogger.com/profile/00380167680292278811noreply@blogger.comtag:blogger.com,1999:blog-8818940027069843379.post-43708911070770698922009-10-21T10:36:30.054-07:002009-10-21T10:36:30.054-07:00I think the answer is A.
(2) Avg. is 8, highest ...I think the answer is A. <br /><br />(2) Avg. is 8, highest element = 4 + 8 = 12<br /><br />Set Possible = {4, 12}<br />or, { 4, 8, 12 } or, {4,5,6,7,8,9,10,11,12}<br />-> insufficient<br /><br />(1) Numbers are consecutive. <br /><br />Set can be represented as {4, 4+n, 4+2n.... 4+kn}<br />(n=1, consecutive)<br />no. of elements = k+1<br /><br />Range = 4+kn-4 = kn<br />Avg. = (4 + 4+kn)/2 = (8+kn)/2<br />Range = avg.<br />kn = 8 => k = 8<br /><br />No. of terms = 9Vaishali Bansalhttps://www.blogger.com/profile/13405775407768268641noreply@blogger.comtag:blogger.com,1999:blog-8818940027069843379.post-89161172932447430152009-10-21T10:27:54.012-07:002009-10-21T10:27:54.012-07:00This comment has been removed by the author.Vaishali Bansalhttps://www.blogger.com/profile/13405775407768268641noreply@blogger.comtag:blogger.com,1999:blog-8818940027069843379.post-1783037887757488262009-10-06T22:07:39.539-07:002009-10-06T22:07:39.539-07:00Hey Blaoism, I think you are wrong, see that the
s...Hey Blaoism, I think you are wrong, see that the<br />set can be 4 5 6 7 8 9 10 11 12, and you are right, the number of terms is odd, because there<br />is a central element, but the average does not<br />have to be odd, as in this set (notice that both<br />average and range are eight. <br /><br />The formula to arrive at shi set is, if you call n the number of elements:<br />(4 + 4 + n - 1)/2 = 4 + n - 1 -4, and n = 8.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-8818940027069843379.post-49448776712301082982009-10-06T01:03:06.605-07:002009-10-06T01:03:06.605-07:00Weird question
(1) avg of consecutive int = range...Weird question<br /><br />(1) avg of consecutive int = range = int<br /> So, the set size must be odd. Hence, the avg is odd if it starts with 4 (or any even). However, the range is even, given 4 is the least. This is a contradiction.<br /><br />(2) least 4, max 12, avg 8. From this, we can say the avg of remaining set, whose elements can be from 5 to 11 is 8. Insuff<br /><br /><br />Check ur question plsblaoismhttps://www.blogger.com/profile/11460022987048478986noreply@blogger.com