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    Question

    Suppose '68472m' is divisible by 6 but not divisible by 5.

    Find the value of (m × 3 - 2).
    A 12 Correct Answer Incorrect Answer
    B 18 Correct Answer Incorrect Answer
    C 16 Correct Answer Incorrect Answer
    D 10 Correct Answer Incorrect Answer

    Solution

    ATQ,

    Sum of digits = 6 + 8 + 4 + 7 + 2 + m = 27 + m

    We need (27 + m) divisible by 3, and m even (not 0 or 5).

    Try m = 6 → 27 + 6 = 33 ✅

    So, m = 6

    (m×3 - 2) = 18 - 2 = 16

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