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    Question

    What is the largest value of 'k' that makes the number

    '415k27' divisible by 3?
    A 7 Correct Answer Incorrect Answer
    B 9 Correct Answer Incorrect Answer
    C 6 Correct Answer Incorrect Answer
    D 8 Correct Answer Incorrect Answer

    Solution

    ATQ,

    A number is divisible by 3 when the sum of its digits is divisible by 3.

    Sum of digits of '415k27' = 4 + 1 + 5 + k + 2 + 7 = (k + 19)

    (k + 19) is divisible by 3 when k = 2, 5, 8

    Therefore, maximum value of 'k' = 8

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