📢 Too many exams? Don’t know which one suits you best? Book Your Free Expert 👉 call Now!
  • google app store apple app store
    • ✖

      Question

      Pipe ‘A’ can fill a 150-litre tank in 15 hours. If

      pipe ‘A’ is 25% more efficient than pipe ‘C’ whereas pipe ‘B’ is 50% more efficient than pipe ‘C’, then find the time (in minutes) taken by all the given three pipes to fill the same tank together.
      A 240 minutes Correct Answer Incorrect Answer
      B 180 minutes Correct Answer Incorrect Answer
      C 120 minutes Correct Answer Incorrect Answer
      D 210 minutes Correct Answer Incorrect Answer
      E 150 minutes Correct Answer Incorrect Answer

      Solution

      According to Question;  Efficiency of pipe ‘A’ = (150/15) = 10 litres/hour  Efficiency of pipe ‘C’ = 10 ÷ 1.25 = 8 litres/hour  Efficiency of pipe ‘B’ = 8 × 1.5 = 12 litres/hour  Time taken by all the pipes together to fill the tank = {150/(10 + 8 + 12)} = (150/30) = 5 hours  Or, time taken by all three pipes together to fill the tank = 5 × 30 = 150 minutes  

      Practice Next
      More Pipes and cisterns Questions

      Relevant for Exams:

      ask-question