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akashkumar1987
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If |x| = |2y| , what is the value of x - 2y?
(1) x + 2y = 6
(2) xy>0
(1) x + 2y = 6
(2) xy>0
Akash,
The answer is D
Given condition is that mod x = mod 2y
Statement 1 says that x+2y = 6 . This and the condition above tells me that x and 2y must be positive and equal to get a positive total 6. x-2y equals 0.
Statement 2 tells me that x and y can be negative together or positive together and that mod x is equal to mod 2y. Either way (positive or negative together), x-2y will equate to 0.