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    Question

    In each of the given number-clusters, the number on the

    right side of = (the equal to sign) is calculated by performing certain mathematical operations on the two numbers on the left of = (the equal to sign). All three number-clusters follow the same pattern. Select the number from among the given options that can replace the question mark (?) in the third number-cluster. 12, 33 = 57 10, 28 = 48 14, 39 = ?
    A 67 Correct Answer Incorrect Answer
    B 71 Correct Answer Incorrect Answer
    C 57 Correct Answer Incorrect Answer
    D 61 Correct Answer Incorrect Answer

    Solution

    The logic is- 12 x 2 + 33 = 57 10 x 2 + 28 = 48 14 x 2 + 39 = 67

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