11. Is x between 0 and 1?
(1) x 2 is less than x.
(2) x3 is positive
Answer is A but what if X is -1/2?
Then X square is 1/4 and greater than x. I think the right answer is C.
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DS set 10, Q 11
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gabriel
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Read the statement carefully, it says, x^2 is less than x, this is only possible when x is between 0 and 1 ...emrahinci wrote:11. Is x between 0 and 1?
(1) x 2 is less than x.
(2) x3 is positive
Answer is A but what if X is -1/2?
Then X square is 1/4 and greater than x. I think the right answer is C.
if x is between -1 and 0, then x^2 > x, and hence negates the given condition, so we can safely say using statement 1 that x is between 0 and 1 ..
