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06 Feb 2018, 06:24
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A
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
35%
(medium)
Question Stats:
75% (01:25) correct
25%
(01:21)
wrong
based on 52
sessions
History
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Time
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Not Attempted Yet
If x and y are integers, is x less than y ?
(1) The cube of x is less than the cube of y.
(2) The square of x is less than the square y.
(1) The cube of x is less than the cube of y.
(2) The square of x is less than the square y.
06 Feb 2018, 07:11
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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
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
06 Feb 2018, 07:21
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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.
Ans - Option A
(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.
Ans - Option A
