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Two pipes P and Q can fill a tank in 10 hours and 15 hours respectively while a third pipe R can empty the full tank in 20 hours. All the pipes are opened for 5 hours and then R is closed. Find the time in which the tank is full?
  • a)
    5.5 hrs
  • b)
    6.5 hrs
  • c)
    7.5 hrs
  • d)
    8.5 hrs
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
Two pipes P and Q can fill a tank in 10 hours and 15 hours respectivel...
(1/10 + 1/15 – 1/20)*5 + (1/10 + 1/15)*T = 1.
We will get Time = 2.5 hrs
Therefore, the total time = 5 + 2.5 = 7.5 hrs
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Two pipes P and Q can fill a tank in 10 hours and 15 hours respectively while a third pipe R can empty the full tank in 20 hours. All the pipes are opened for 5 hours and then R is closed. Find the time in which the tank is full?a)5.5 hrsb)6.5 hrsc)7.5 hrsd)8.5 hrsCorrect answer is option 'C'. Can you explain this answer?
Question Description
Two pipes P and Q can fill a tank in 10 hours and 15 hours respectively while a third pipe R can empty the full tank in 20 hours. All the pipes are opened for 5 hours and then R is closed. Find the time in which the tank is full?a)5.5 hrsb)6.5 hrsc)7.5 hrsd)8.5 hrsCorrect answer is option 'C'. Can you explain this answer? for Interview Preparation 2024 is part of Interview Preparation preparation. The Question and answers have been prepared according to the Interview Preparation exam syllabus. Information about Two pipes P and Q can fill a tank in 10 hours and 15 hours respectively while a third pipe R can empty the full tank in 20 hours. All the pipes are opened for 5 hours and then R is closed. Find the time in which the tank is full?a)5.5 hrsb)6.5 hrsc)7.5 hrsd)8.5 hrsCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Interview Preparation 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Two pipes P and Q can fill a tank in 10 hours and 15 hours respectively while a third pipe R can empty the full tank in 20 hours. All the pipes are opened for 5 hours and then R is closed. Find the time in which the tank is full?a)5.5 hrsb)6.5 hrsc)7.5 hrsd)8.5 hrsCorrect answer is option 'C'. Can you explain this answer?.
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