CAT Quant Practice Problems

Question: If n is such that 36 ≤ n ≤ 72 , then\(x = \frac{{{n^2} + 2\sqrt n \left( {n + 4} \right) + 16}}{{n + 4\sqrt n + 4}}\)satisfies

20 < x < 54
23 < x < 58
25 < x < 64
28 < x < 60
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