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06 Apr 2007, 18:24
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|x| > |y| ?
1) x^2 > y^2
2) x > y
Please provide a solution with your answer!
Thanks!
1) x^2 > y^2
2) x > y
Please provide a solution with your answer!
Thanks!
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06 Apr 2007, 19:24
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My answer is 'A'
stmt 1: x^2 > y^2
irrespective of the sign of x and y, stmt1 proves that |x| >| y|
hence SUFF
stmt2: x > y
for +ve x and +ve y stmt2 gives |x| >| y|
for -ve x and -ve y stmt2 gives |x| <| y|
hence INSUFF
stmt 1: x^2 > y^2
irrespective of the sign of x and y, stmt1 proves that |x| >| y|
hence SUFF
stmt2: x > y
for +ve x and +ve y stmt2 gives |x| >| y|
for -ve x and -ve y stmt2 gives |x| <| y|
hence INSUFF
06 Apr 2007, 20:19
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St1:
Sufficient. Works for both negative and positive values. If x = 3, y = 2, x^2 > y^2 and |x| > |y|. It works for x = -3 and y = -2 as well.
St2:
Works only for positive values. If x = -2 and y = -3, then |x| < |y|. Insufficient.
Ans A
Sufficient. Works for both negative and positive values. If x = 3, y = 2, x^2 > y^2 and |x| > |y|. It works for x = -3 and y = -2 as well.
St2:
Works only for positive values. If x = -2 and y = -3, then |x| < |y|. Insufficient.
Ans A
