If X & Y are integers, is xy even?
1) x = Y+1
2) x/y is even integer
OA D. MY answer B. incase of 1st statement, do we consider 0 or not. i guess 0 is an integer and 0 is neither even nor odd. Please advice.
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Hi,
Zero is even. When we divide zero by 2, remainder is zero. That is enough to say that zero is evn.
Hence, D
Zero is even. When we divide zero by 2, remainder is zero. That is enough to say that zero is evn.
Hence, D
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1. X = Y+1
Assume Y is Even then X is Odd then XY is Even
Assume Y is Odd then X is Even then also XY is Even
Statement one is sufficient
2. X/y = Even Integer
X = y*Even For multiplication even if any one of the multiple is Even then result is Even so X is Even. Applying similarly to XY, XY is even.
Statement two is sufficient
Answer D
Assume Y is Even then X is Odd then XY is Even
Assume Y is Odd then X is Even then also XY is Even
Statement one is sufficient
2. X/y = Even Integer
X = y*Even For multiplication even if any one of the multiple is Even then result is Even so X is Even. Applying similarly to XY, XY is even.
Statement two is sufficient
Answer D
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Many GMAT questions are looking to see whether you understand how zero works. Zero is neither positive nor negative, but it is even. That fact will help you with many data sufficiency questions.
Tani Wolff
essentially asking if xy = either eo/eeshyamprasadrao wrote:If X & Y are integers, is xy even?
1) x = Y+1
2) x/y is even integer
OA D. MY answer B. incase of 1st statement, do we consider 0 or not. i guess 0 is an integer and 0 is neither even nor odd. Please advice.
1) case 1: e = o + o
case 2: o = e + o
gives you: eo/eo
2) y must be even; to get an integer from an even, it must also be even.
x/e=e; ee=x; we know that ee=e.
D