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Source: — Data Sufficiency |
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by MakeUrTimeCount » Thu Jan 26, 2012 6:13 am
1) x>7/2y
y may be +ve or -ve. Insufficient.

2) x>|y|
Again y may be +ve or -ve. Insufficient.

Using both,
Insufficient.
Ans:E
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by neelgandham » Thu Jan 26, 2012 7:16 am
If x>0, is y>0?
Let the value of x be 2. So the question can be rephrased to If x = 2, is y > 0 ?
1). x>7/2y
2>7/2y
y<4/7. So the value of y can be 2/7(any positive number less than 4/7) or -2(any negative number). Insufficient to answer the question
2). x>|y|
2>|y|, implies -2<y<2. So the value of y can be 2/7( any positive number less than 2) or -2/7(any negative number more than -2). Insufficient to answer the question
From 1 and 2.
-2<y<4/7; So the value of y can be 2/7(any positive number less than 4/7) or -2(any negative number more than -2). Insufficient to answer the question

IMO E
Anil Gandham
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by ArunangsuSahu » Thu Jan 26, 2012 12:19 pm
(E)
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