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    Question

    If 59x284 is a six-digit number that is divisible by 3,

    then find the maximum value of 6x.
    A 42 Correct Answer Incorrect Answer
    B 30 Correct Answer Incorrect Answer
    C 48 Correct Answer Incorrect Answer
    D 36 Correct Answer Incorrect Answer

    Solution

    We know that a number is divisible by 3 only when the sum of its digits is also divisible by 3. So,
    5 + 9 + x + 2 + 8 + 4 = (28 + x) should be divisible by 3 So, possible values of x = 2, 5, 8 Maximum possible value of x = 8 So, required value
    = 6 × 8
    = 48

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