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Square root and cube root

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  1. If √1 + 27/169) = (1 + N/13). then N equals ?
    1. 1
    2. 3
    3. 5
    4. 7
Correct Option: A

√1 + 27/169 = (1 + N/13)
∴ √196/169 = (1 + N/13)
⇒ 14/13 = (1 + N/13)
⇒ N/13 = (14/13 - 1 ) = 1/13
∴ N = 1


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