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by pemdas » Thu Nov 01, 2012 11:44 am
[email protected] wrote:If X/Y=-1, then X+Y= ?
x=-y and x+y=-y+y=0
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by Brent@GMATPrepNow » Fri Nov 02, 2012 6:52 am
[email protected] wrote:If X/Y=-1, then X+Y= ?
You can also solve this question by choosing numbers that satisfy the given condition.
If X/Y = -1, then it could be the case that X = -1 and Y = 1

Now, to find the value of X+Y, just plug in -1 and 1 to get (-1) + 1 = 0

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