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    Question

    ‘A’ can do a piece of work in 10 days. ‘B’ can

    do 80% of the same work in 20 days. If they work together for the entire time and get paid Rs.1400, then find the share of ‘A’.
    A Rs.1120 Correct Answer Incorrect Answer
    B Rs.1100 Correct Answer Incorrect Answer
    C Rs.1000 Correct Answer Incorrect Answer
    D Rs.1050 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    Let the total work be 20 units. (LCM of 10 and 20) Efficiency of A = 20/10 = 2 units/day Efficiency of B = (20/20) × (80/100) = 4/5 units/day Ratio of the efficiency of A : B = 2 : 4/5 = 10:4 Share of A = (10/14) × 1400 = Rs.1000

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