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    Question

    20% of ‘m’ added to 80% of ‘n’ equals 160. If

    ‘n’ exceeds ‘m’ by 60, find the value of (2m – n).
    A 45 Correct Answer Incorrect Answer
    B 33 Correct Answer Incorrect Answer
    C 40 Correct Answer Incorrect Answer
    D 90 Correct Answer Incorrect Answer

    Solution

    ATQ,

    0.20m + 0.80n = 160…….. (1)

    And, n – m = 60………. (2)

    On solving equation (1) and (2), we get

    m = 100 and n = 160

    Therefore, (2m – n) = 200 – 160 = 40

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