πŸ“’ Too many exams? Don’t know which one suits you best? Book Your Free Expert πŸ‘‰ call Now!


    ⚑ Azaadi sale - Celebrate Independence Day with Flat 55% Off On all courses! 13 to 17 Aug ⚑ Enroll Now

    Question

    A and B can complete a task together in 12 days, while B

    alone takes 24 days to finish it. A began working alone and left after β€˜x’ days, after which B completed the remaining work in 18 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 unitsEfficiency of (A + B) = 16/8 = 2 units/dayEfficiency of β€˜B’ = 16/16 = 1 unit/dayAmount of work done by β€˜B’ = 12 Γ— 1 = 12 unitsPercentage of work done by β€˜A’ = {(16 – 12)/16} Γ— 100 = 25%

    Practice Next

    Relevant for Exams:

    ask-question

    Not sure which exam is best for you Talk to our expert

    Get My Free Call