Question

    M and N are two numbers. Their average is 160, and the

    sum of M and N is 120% of M. What percentage of M is the difference between M and N?
    A 22% Correct Answer Incorrect Answer
    B 20% Correct Answer Incorrect Answer
    C 29% Correct Answer Incorrect Answer
    D 18% Correct Answer Incorrect Answer

    Solution

    ATQ;
    Since M + N = 120% of M

    So, M : N = 5 : 6

    (M − N) : M = 1 : 5

    Therefore,

    1/5 × 100% = 20%

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