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    In the following number-pairs, the second number is obtained by applying certain mathematical operations to the first number. Select the set in which
    Question

    In the following number-pairs, the second number is obtained by applying certain mathematical operations to the first number. Select the set in which the numbers are related in the same way as are the numbers of the following sets.
    (NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into its constituent digits. E.g. 13-Operations on 13 such as adding/subtracting/multiplying etc. to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed)
    7,50
    15,226


    A.

    21, 445

    B.

    11, 131

    C.

    14, 162

    D.

    17, 290

    Correct option is D

    Given: 
    7, 50
    15, 226
    logic: Second number = square of first number + 1
    7, 50 → square of 7 + 1 = 49 + 1 = 50
    15, 226 → square of 15 + 1 = 225 + 1 = 226
    From the given option (d) - 
    17, 290 → square of 17 + 1 = 289 + 1 = 290
    Correct answer is (d).

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