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    Question

    Rohit and Karan can complete a work alone in 64 days and

    80 days respectively. Working together they earn Rs. 7,200. How much does Karan get?
    A Rs.4,400 Correct Answer Incorrect Answer
    B Rs.5,460 Correct Answer Incorrect Answer
    C Rs.3,200 Correct Answer Incorrect Answer
    D Rs.1,460 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ATQ,

    Ratio of efficiency = reciprocal of days.

    Ratio of efficiency of Rohit and Karan = 80:64 = 5:4

    So, ratio of wages = 5:4

    Karan’s wage = (4/9) × 7,200 = Rs. 3,200

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