Question

    If 3792 = 39 and 7242 = 22, then 2958 =

    ?
    A 48 Correct Answer Incorrect Answer
    B 58 Correct Answer Incorrect Answer
    C 68 Correct Answer Incorrect Answer
    D 78 Correct Answer Incorrect Answer

    Solution

    (3 × 7) + (9 × 2) = 21 + 18 = 39 (7 × 2) + (4 × 2) = 14 + 8 = 22 Similarly,  (2 × 9) + (5 × 8) = 18 + 40 = 58

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