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यदि `n+2/3n+1/2n+1/7n=97` है तो `n` का मान ज्ञात करें?

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यदि `n+2/3n+1/2n+1/7n=97` है तो `n` का मान ज्ञात करें?
A. 40
B. 42
C. 44
D. 46
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Correct Answer - B
`n+2/3n+1/2n+1/7n=97`
`implies(42n+28n+21n+6n)/42=97`
`=(97n)/42=97`
`=n=42`
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