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


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

    Question

    Akhil and Nikhil together can complete a work in 6 days

    while Nikhil alone takes 18 days to complete 60% of the work. If the efficiency of Sachin is 25% more than that of Akhil, then find the time taken by Sachin alone to complete the whole work.
    A 9 days Correct Answer Incorrect Answer
    B 6 days Correct Answer Incorrect Answer
    C 7 days Correct Answer Incorrect Answer
    D 5 days Correct Answer Incorrect Answer

    Solution

    Time taken by Nikhil to complete the whole work alone = 18/0.60 = 30 days Let the total work = 30 units Efficiency of (Akhil + Nikhil) = 30/6 = 5 units/day Efficiency of Nikhil = 30/30 = 1 units/day Efficiency of Akhil = 5 - 1 = 4 units/day Therefore efficiency of Sachin = 1.25 x 4 = 5 units/day Time taken by Sachin to complete the whole work alone = 30/5 = 6 days

    Practice Next
    ask-question

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

    Get My Free Call