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

  • google app store apple app store
  • ✖

      Question

      Tap A and Tap B fill a drum of volume 425 liters in 17

      minutes. If their efficiencies are in the ratio x:y respectively and B alone takes to fill the cistern 42.5 minutes. Find x-y.
      A 7 Correct Answer Incorrect Answer
      B 4 Correct Answer Incorrect Answer
      C 3 Correct Answer Incorrect Answer
      D 6 Correct Answer Incorrect Answer
      E 5 Correct Answer Incorrect Answer

      Solution

                             A+B         B Time                 17     :   42.5 Efficiency        42.5   :    17                          25    :    10 Efficiency of A+B = 25 Efficiency of B = 10 Efficiency of A = 25 – 10 = 15 Ratio = x:y = 15:10 So, x – y = 15 – 10 = 5

      Practice Next
      ask-question