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    Question

    Find the remainder when the number (400n + 247) is

    divided by 20.
    A 13 Correct Answer Incorrect Answer
    B 7 Correct Answer Incorrect Answer
    C 4 Correct Answer Incorrect Answer
    D 10 Correct Answer Incorrect Answer

    Solution

    ATQ, 400n + 247 = (20 ├Ч 20n) + (20 ├Ч 12) + 7 = 20 ├Ч (20n + 12) + 7 Since, 20 ├Ч (20n + 12) is completely divisible by 20 So, the remainder will be 7.

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