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Re: If x and y are integers, is x less than y ?
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06 Feb 2018, 06:11

IMO the answer should be A from statement 1 : x^3 < y^3 basically it says x<y (sign doesn't have the effect) hence sufficient From statement 2 x^2 < y^2 consider 4<9 hence 2<3 ( yes) but -2>-3(no)... insufficient answer : A
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Re: If x and y are integers, is x less than y ?
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06 Feb 2018, 06:21

If x and y are integers, is x less than y ?

(a) The cube of x is less than the cube of y. - This option works well with both positive and negative values. If X^3 < Y^3 , then X < Y. - Sufficient.

(b) The square of x is less than the square y. If the x and y are negative values, then square of X is not always less than square of Y. - Not Sufficient.