DS - Problems HELP

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DS - Problems HELP

by soni_pallavi » Fri Nov 09, 2012 10:55 pm
Q1) Is |x-y| > |x| - |y|

1) y < x
2) xy < 0

Q2)Is m+z>0

1) m - 3z > 0
2) 4z - m > 0

Q3)If the integers a and n are greater than 1 and the product of the first 8 positive integers is a multiple of a^n , what is the value of a?

1) a^n = 64
2) n = 6

Q4)Are x and y both positive??

1) 2x - 2y = 1
2) x/y > 1
Source: — Data Sufficiency |

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by Brent@GMATPrepNow » Sat Nov 10, 2012 6:49 am
Please post only one question per thread. Otherwise things can become pretty complicated when there are discussions on multiple questions.

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