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SSC CHSL 2024 PYQ — Question 64

SSC CHSL - 01 July 2024 - Shift 4 • Quantitative Aptitude • Q64

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M varies inversely as (N2 + 3). If M = 3 when N = 3, then what will be the value of M when N2 = 69?

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Correct answer: A

Explanation

The correct answer is Option 1 i.e. 12\frac{1}{2}.

Given that,

⇒ M ∝ 1/(N2 + 3)

Let M = k/(N2 + 3)

Given,

The value of M = N = 3

Hence, the value of k = 36

Now, if the value of N2 = 69 

⇒ M = 3669+3\frac{36}{69 + 3} = 12\frac{1}{2} 

Hence, the value of M = 12\frac{1}{2}