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    Question

    If 38 × 34 = 31, 34 × 58 = 25 and 56 × 67 = 43, then

    28 × 32 = ?
    A 27 Correct Answer Incorrect Answer
    B 20 Correct Answer Incorrect Answer
    C 25 Correct Answer Incorrect Answer
    D 21 Correct Answer Incorrect Answer

    Solution

    38 × 34 → (3 × 8) + 3 + 4 = 24 + 7 = 31 34 × 58 → (3 × 4) + 5 + 8 = 12 + 13 = 25 56 × 67 → (5 × 6) + 6 + 7 = 30 + 13 = 43 28 × 32 → (2 × 8) + 3 + 2 = 16 + 5 = 21

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