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    Question

    Rohit and Mohit began a job together, but after 10 days

    Rohit left the task. Mohit finished the rest of the job alone in 8 days. Rohit is 40% less efficient than Mohit. If they earned Rs. 3600 for completing the work, find Mohit’s share.
    A Rs.2520 Correct Answer Incorrect Answer
    B Rs.1850 Correct Answer Incorrect Answer
    C Rs.2700 Correct Answer Incorrect Answer
    D Rs.2240 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ATQ,

    Let the efficiency of Mohit be 5x units/day

    So, efficiency of Rohit = 5x Ă— (60/100) = 3x units/day

    Work done in first 10 days = 10 Ă— (3x + 5x) = 80x units

    Work done by Mohit in 8 days = 8 Ă— 5x = 40x units

    Total work = 80x + 40x = 120x units

    Work done by Mohit = 10 Ă— 5x + 8 Ă— 5x = 90x units

    So, Mohit's share = (3600 / 120x) Ă— 90x = Rs. 2700

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