📢 Too many exams? Don’t know which one suits you best? Book Your Free Expert 👉 call Now!

    âš¡ Month End Offer - Flat 52% Off On All Courses! Enroll Now âš¡
    00:00:00 AM Left

    Question

    A and B can complete a task together in 8 days, while B

    alone takes 16 days to finish it. A began working alone and left after ‘x’ days, after which B completed the remaining work in 12 days. Determine the percentage of the total work completed by A.
    A 25% Correct Answer Incorrect Answer
    B 15% Correct Answer Incorrect Answer
    C 20% Correct Answer Incorrect Answer
    D 40% Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    Let total amount of work be 16 units
    Efficiency of (A + B) = 16/8 = 2 units/day
    Efficiency of ‘B’ = 16/16 = 1 unit/day
    Amount of work done by ‘B’ = 12 × 1 = 12 units
    Percentage of work done by ‘A’ = {(16 – 12)/16} × 100 = 25%

    Practice Next
    More Time and work Questions
    ask-question