Search found 49 matches
Is the integer N odd?
Is the integer N odd? (1) N is divisible by 3 (2)2N is divisible by twice as many positive integer as N. Per following link: http://www.beatthegmat.com/is-the-integer-n-odd-t81868.html Answer is B. But I disagree. Here is why: if you pick 9 or 18 logic adds up. but if you pick lets say 17 then 2(17)...
- by shahab03
Sun May 20, 2012 2:30 pm- Forum: Data Sufficiency
- Topic: Is the integer N odd?
- Replies: 1
- Views: 888
ratio cross cancel method
can someone please explain in detail how to do this problem using cross cancel method... i was able to do it by bringing all the values to same level but that takes too long would like to do it faster. thanks At a certain school, the ratio of the number of second graders to the number of fourth grad...
- by shahab03
Sun May 20, 2012 8:33 am- Forum: Problem Solving
- Topic: ratio cross cancel method
- Replies: 2
- Views: 1306
- by shahab03
Sun May 20, 2012 7:54 am- Forum: Problem Solving
- Topic: sequence question - making no sense
- Replies: 1
- Views: 811
GCD of m and n
http://s2.postimage.org/Yku_i.jpg I am ok with Statement 1's explanation 1) m is prime no info on n, insuff if m=5 and n=15 , GCF=5 if m=5, n=4 then GCF =1 so Not sufficient. Not following the explanation for statement 2: 2) 2n=7m; n=7/2 m or 1:3.5 ratio n could be 2, m could be 7, GCF=1 n could be...
- by shahab03
Tue Feb 23, 2010 9:11 pm- Forum: Data Sufficiency
- Topic: GCD of m and n
- Replies: 2
- Views: 1390
remainder when x divided by 6
http://s4.postimage.org/puCpA.jpg From statement 1: When x is divided by 2 remainder is 1, so its a odd number -- 3,5,7.... When x is divided by 3 remainder is 0, so that means its a odd number divisible by 3 ... 3,9,15 when 9/6 -- remainder is 3 when 15/6 -- remainder is 3 whats the remainder when...
- by shahab03
Tue Feb 23, 2010 8:53 pm- Forum: Data Sufficiency
- Topic: remainder when x divided by 6
- Replies: 1
- Views: 7437
graph intersects x-axis
http://s3.postimage.org/Gg5X0.jpg this question has been discussed quite a few times but I DON'T GET IT. Can someone please help this dumb person understand this: I looked at following explanation but I dont understand why we need value for ab and why we are worried about (a+b). some background wil...
- by shahab03
Tue Feb 23, 2010 7:50 pm- Forum: Data Sufficiency
- Topic: graph intersects x-axis
- Replies: 1
- Views: 3713
Must be C The question really asks whether lines l and l are perpendicular? The product of slopes of Perpendicular lines are always -1. 1. No info about line k. Insufficient. 2. No info about line l. Insufficient. Combined, Line K has a slope of 2 (m1) [Points are (0,0) and (1,2). Slope = 2-0 / 1-2...
- by shahab03
Tue Feb 23, 2010 7:25 pm- Forum: Data Sufficiency
- Topic: XY Plane- GMATPrep
- Replies: 5
- Views: 1989
- by shahab03
Tue Feb 23, 2010 7:20 pm- Forum: Data Sufficiency
- Topic: GPrep Question 20 - divided by 7
- Replies: 1
- Views: 3098
- by shahab03
Mon Feb 22, 2010 6:50 pm- Forum: Data Sufficiency
- Topic: XY Plane- GMATPrep
- Replies: 5
- Views: 1989
- by shahab03
Mon Aug 31, 2009 10:40 am- Forum: Problem Solving
- Topic: value of M
- Replies: 1
- Views: 1055
- by shahab03
Mon Aug 31, 2009 10:19 am- Forum: Problem Solving
- Topic: value of x
- Replies: 4
- Views: 1217
- by shahab03
Mon Aug 31, 2009 10:14 am- Forum: Problem Solving
- Topic: value of expression
- Replies: 1
- Views: 1016
- by shahab03
Mon Aug 31, 2009 8:30 am- Forum: Data Sufficiency
- Topic: triangle question
- Replies: 4
- Views: 1191
- by shahab03
Mon Aug 31, 2009 7:12 am- Forum: Data Sufficiency
- Topic: triangle question
- Replies: 4
- Views: 1191
- by shahab03
Wed Sep 24, 2008 1:27 pm- Forum: Problem Solving
- Topic: gmatprep - sum of sequence
- Replies: 3
- Views: 1561