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Source: — Data Sufficiency |
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by anitha majji » Fri Dec 25, 2009 7:52 am
Answer must be E.

Expln :

St1 says xy is integer.
Say, x=7/2 and y=2, then xy=7 is an integer.
But, x-y != 6
So, st1 is not sufficient alone.

Combining st1 and st2 with above values for x and y, also does not yield the result of |x-y| as 6.

Hence E.

Whats OA ?
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by mehravikas » Tue Dec 29, 2009 12:09 am
answer should be E. Reasoning same as above.
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