πŸ“’ Too many exams? Don’t know which one suits you best? Book Your Free Expert πŸ‘‰ call Now!
  • google app store apple app store
    • βœ–

      Question

      Pipe A can fill a tank in 20 hours and pipe B in 30 hours.

      If both the pipes are opened in an empty tank, how much time will they take to fill it?
      A 18 hours Correct Answer Incorrect Answer
      B 10 hours Correct Answer Incorrect Answer
      C 14 hours Correct Answer Incorrect Answer
      D 12 hours Correct Answer Incorrect Answer

      Solution

      Let the capacity of tank be 60 litres (LCM of 20 and 30)Efficiency of 'A' = (60/20) = 3 litres/hourEfficiency of 'B' = (60/30) = 2 litres/hourRequired time = 60 Γ· (3 + 2) = 12 hours

      Practice Next
      More Pipes and cisterns Questions

      Relevant for Exams:

      ask-question