Is x y ? (1) x - y 0 (2) x + y 0

Question

Is x > y ?

(1) x - y > 0

(2) x + y > 0

Bunuel · Answer

Is x>y?

(1) x - y > 0. Re-arrange: x > y. Directly answers the question. Sufficient.

(2) x + y > 0. The sum of two numbers is less than 0. This is no sufficient to say which of those numbers is larger. Not sufficient.

Answer: A.

gurmukh · Answer

First statement
X-y>0
X>Y
From second statement
x >-y
Let x=3 y=2
x>y
Let x=-1 and y=2
x<y
Insufficient
Option A is the answer

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Is x > y ? (1) x - y > 0 (2) x + y > 0