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Re: Is x > 0 (1) x < x^2 (2) x^2 < x^3
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24 Jan 2011, 06:59
(1) If x = 2, then \(x^2 = 4\); here x > 0 If x = -2, then \(x^2 = (-2)^2 = 4\); here x < 0 x may or may not be greater than 0. Hence, there is no unique answer. So, statement 1 is NOT SUFFICIENT.
(2) \(x^2 < x^3\) implies that x > 1, which implies x is always positive. So, x > 0. So, statement 2 is SUFFICIENT.
Anurag Mairal, Ph.D., MBA GMAT Expert, Admissions and Career Guidance Gurome, Inc. 1-800-566-4043 (USA) +91-99201 32411 (India) http://www.facebook.com/Gurome
Re: Is x > 0 (1) x < x^2 (2) x^2 < x^3
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17 Mar 2011, 22:56
Very easy. Question asks if x is positive ...fraction OR integer doesn't matter.. Statement 1 says that x is either a negative fraction OR a positive integer. Statement 2 says that x is definitely a positive integer. Hence B
Re: Is x > 0 (1) x < x^2 (2) x^2 < x^3
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29 Mar 2019, 05:04
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