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Question

If 4 : 3 = x2 : 12, then the value of x (x > 0).

(a) 16
(b) 4
(c) 9
(d) 3

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Solution

It is given that,

43=x2124×43×4=x2121612=x21216=x242=x2 x>04=x

Hence, the correct option is (b).

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