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28 Mar 2018, 23:52
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C
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Difficulty:
5%
(low)
Question Stats:
88% (00:28) correct
12%
(00:38)
wrong
based on 337
sessions
History
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Not Attempted Yet
GMAT CLUB TESTS' FRESH QUESTION.
What is the value of |m| - |n|?
(1) n^2 = 36
(2) m^2 = 81
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Pure algebraic questions like this one are no longer part of the GMAT Data Sufficiency syllabus.
For relevant Data Sufficiency questions, please check the Data Sufficiency forum:
Data Sufficiency Forum
Data Sufficiency Forum
30 Mar 2018, 11:31
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Bunuel
(1) n^2 = 36
n = 6 or -6
No info about m
Insufficient
(2) m^2 = 81
m = 9 or -9
No info about m
Insufficient
Combine both 1 & 2
In any value of n & m, then |m| - |n| will have fixed value. Let's see:
Let n =6 & m = 9....|m| - |n| = |9| - |6| = 3
Let n =6 & m = -9....|m| - |n| = |-9| - |6| = 3
Let n =-6 & m = 9....|m| - |n| = |9| - |-6| = 3
Let n =-6 & m = -9....|m| - |n| = |-9| - |-6| = 3
Sufficient
Answer: C
