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    Question

    In a two-digit number, the ratio of the tens digit to

    the unit digit is 4:1. If the sum of the digits is 25, what is the product of the digits?
    A 18 Correct Answer Incorrect Answer
    B 10 Correct Answer Incorrect Answer
    C 20 Correct Answer Incorrect Answer
    D 25 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ATQ,

    Let, ten’s digit and unit’s digit be 4x and 1x respectively. 4x + 1x = 25 5x = 25 x = 25/5 = 5 Therefore, required number = 45 So, product of digits = 4 × 5 = 20

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