GMAT Problem Solving (PS) | Re: The diagram below shows the various paths...
Bunuel wrote:emil3m wrote:Bunuel wrote:It's not clear what's you logic behind applying permutation to this problem. I guess 3 is # of the forks on the road, but we are not choosing those 3 out of 7...
View ArticleGMAT Problem Solving (PS) | Re: A set of data consists of the following 5...
The above method explains it well , and if you are short of time and need to make an educated guess , this works perfect.If you are in for some calculations , this is how I got to itmean = 4sd...
View ArticleGMAT Problem Solving (PS) | Re: At the Marseille port, a small cargo ship is...
D.lets Say V1 is vol of small cargo and v2 is large cargor1 = v1/2.5r2 = 2r1x = v2/r2x= v2/2v1/2.5x= 5v2/4v1v2/v1 = 4x/5 SO D
View ArticleIntegrated Reasoning (IR) | Re: The Consumer Price Index (CPI) CPI-U
Kris01 wrote:The changes in seasonally adjusted prices for used cars and trucks between March 2010 and September 2010 were in most cases less in magnitude than the changes in seasonally adjusted...
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GMAT Problem Solving (PS) | Re: Last year a certain bond price with a face...
Bunuel wrote:sapna44 wrote:Last year a certain bond price with a face value of 5000 yielded 8 % of its face value in interest. If that interest was approx 6.5 of the bond's selling price approx what...
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GMAT Data Sufficiency (DS) | Re: Malik's recipe for 4 servings of a certain...
morya003 wrote:Hi GuysStatement 1 says - (1) The next time he prepares this dish, Malik will make half as many servings as he did the last time he prepared the dish.I interpreted this as next time he...
View ArticleGMAT Problem Solving (PS) | Re: What is the remainder when 333^222 is divided...
A simple one line solution to this problem can be this:Rem(333^222)/7 = Rem(4^222)/7 = Rem(64^74)/7=Rem((63+1)^74)/7 = 1
View ArticleGMAT Problem Solving (PS) | Re: On a recent trip, Cindy drove her car 290...
WTF, D is WRONG. D offers the range to be between (284/12.5)>, <(295/11.4). Yet, 284.5/12.5 is greater than 284/12.5 but cannot possibly be value of miles per gallon since 284.5 would round down...
View ArticleGMAT Problem Solving (PS) | Re: What is the probability of a two pair in poker?
I see. So the problem is that of the remaining 48 cards, some might be coming from the two pairs we initially picked from. If that is the case why cant we subtract 6? Why 8? We already chose 2 cards...
View ArticleGMAT Data Sufficiency (DS) | Re: In the XY plane, does the line with equation...
Bunuel,In statement (1), you have said that we have these possibilities:(3r + 2 - s) = 0 OR (4r + 9 - s) = 0 OR both.But, when we have something like this:(x + 3)(x+5) = 0In this case, there are only...
View ArticleGMAT Problem Solving (PS) | Re: cylinder and sphere
Sphere is inside cylinder, thus radius of cylinder and sphere are same.Volume of Cylinder : pi r^2 2rVolume of sphere : 4/3 pi r^33:2
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GMAT Quantitative Section | Re: Problem factoring difficult quadratic equation
Thanks Mike for the awesome post!Posted from my mobile device
View ArticleGMAT Problem Solving (PS) | Re: Lindsay can paint 1/x of a certain room in...
1/x th of work-----1 hr1 full work----------? hr --------x hrs by L to complete full workNow xy/x+y=1we have to find y i.e., hrs taken by J to complete full workdivide numerator and denominator of...
View ArticleGMAT Problem Solving (PS) | Re: A box measuring 54 inches long by 36 inches...
use volumes volume of box = 54 (2*3^3) * 36 (2^2*3^2) * 12 (2^2*3) = 2^5*3^6the greatest cub that divide 2^5*3*6 is 2^3*3^3 and the remainder is thus the biggest number of cubes is 2^2*3^3 = 27*4 = 108
View ArticleGMAT Problem Solving (PS) | Re: How many ways can you distribute 5 marbles in...
alphabeta1234 wrote:How many ways can you distribute 5 marbles in 3 identical baskets such that each basket gets at least 1 marble.I am trying to solve this problems using as many approaches:The...
View ArticleGMAT Problem Solving (PS) | How many ways can you distribute 5 marbles in 3...
This topic have been merged with: http://gmatclub.com/forum/topic-140926.html
View ArticleGMAT Data Sufficiency (DS) | Two teams A and B comprising of 3 members each...
Two teams A and B comprising of 3 members each take part in a Math competition. The test consists of 6 problems and if any member of a team solves 3 problems correctly, then the member wins a gold...
View ArticleGMAT Problem Solving (PS) | Re: What is the remainder of (3^7^11)/5
This is basically 2 remainder questions merged in one:Part 1:Rem(7^11)/4 = Rem(8-1)^11/4=3Part 2:Rem((3^(7^11))/5)=Rem((3^3)81^k)/5=Rem(27/5)=2We are considering the remainder for 4 as 3^4 = 81 which...
View ArticleGMAT Problem Solving (PS) | Re: What is the remainder when 32^32^32 is...
Rem(32^32^32)=Rem(4^32)^32now 4^3 = 64 = 63+1. hence when 64 to the power anything is divided by 7, the remainder will always be 1so, Rem(32^32)/3 = Rem(33-1)^32/3 = 1.Hence Rem(4*64^k)/7 = 4
View ArticleGMAT Data Sufficiency (DS) | Re: Can we add inequalities
Quote:We have b^2(a-c)>0 (b\neq{0}). Now, since b^2>0, then the other multiple must also be greater than 0 --> a-c>0 --> a>c..Hope it's clear.Wonderful explanation!!! Thanks Bunuel
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