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SSC MTS 2022 PYQ — Question 51

SSC MTS - 26 July 2022 - Shift 3 • Quantitative Aptitude • Q51

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If 256, K, K, 81 are in propoliion, and K is positive, then what is tbe value of K?

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Correct answer: C

Explanation

The correct answer is option 3 i.e. 144

256 : K :: K : 81

256K=K81\frac{256}{K}=\frac{K}{81}

K2=256×81K^{2}=256 \times 81

K=256×81K=\sqrt{256\times 81}

K=144K=144