Inequality  Quant Preparation  CAT 2020
The problem is from the topic Inequality.
Question
Solve for real 'x' if > 0
(1) x > 9
(2) 0 < x < 9
(3) x < 0
(4) None of these
Correct Choice is (2) and Correct Answer is 0 < x < 9
Explanatory Answer
Squaring on both sides we get, 9xx^{2} > 0
=> x^{2}  9x < 0
=> x(x  9) < 0
=> 0 < x < 9
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