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

    Question

    Tap A is 100% more efficient than tap B. Both the taps

    together can fill the tank in 6 hours. Find the time taken by tap C, which is 50% more efficient than tap B, to fill the tank alone.
    A 18 hrs Correct Answer Incorrect Answer
    B 16 hrs Correct Answer Incorrect Answer
    C 12 hrs Correct Answer Incorrect Answer
    D 15 hrs Correct Answer Incorrect Answer
    E 9 hrs Correct Answer Incorrect Answer

    Solution

    Let, time taken by tap B to fill the tank be x hours,
    So, time taken by tap A to fill the tank = x/2 hours According to question, 1/x + 1/(x/2) = 1/6
    1/x + 2/x = 1/6
    x = 18 So, time taken by tap C to fill the tank = 18/1.5 = 12 hours

    Practice Next
    More Pipes and cisterns Questions

    Relevant for Exams:

    ask-question