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Three pipes A, B and C can fill a cistern in 10 hrs. After working together for 4 hours, C is closed and A and B fill the cistern in 9 hrs. Then find the time in which the cistern can be filled by pipe C?
  • a)
    35 hrs
  • b)
    40 hrs
  • c)
    30 hrs
  • d)
    90 hrs
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
Three pipes A, B and C can fill a cistern in 10 hrs. After working to...
A, B and C can fill in 1 hour = 1/10 of cistern
A, B and C can fill in 4 hour= 4/10 =2/5 of cistern
Remaining part = 1 - 2/5 =3/5 of cistern
3/5 of cistern is filled by A+B in 9 hours
Therefore, A and B can fill the cistern in 9*5/3 = 15 hrs
Hence in one hour C filled the cistern = 1/10 - 1/15 = 1/30 of cistern
Hence C can fill the cistern in 30 hrs.
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Three pipes A, B and C can fill a cistern in 10 hrs. After working together for 4 hours, C is closed and A and B fill the cistern in 9 hrs. Then find the time in which the cistern can be filled by pipe C?a)35 hrsb)40 hrsc)30 hrsd)90 hrsCorrect answer is option 'C'. Can you explain this answer?
Question Description
Three pipes A, B and C can fill a cistern in 10 hrs. After working together for 4 hours, C is closed and A and B fill the cistern in 9 hrs. Then find the time in which the cistern can be filled by pipe C?a)35 hrsb)40 hrsc)30 hrsd)90 hrsCorrect answer is option 'C'. Can you explain this answer? for Railways 2024 is part of Railways preparation. The Question and answers have been prepared according to the Railways exam syllabus. Information about Three pipes A, B and C can fill a cistern in 10 hrs. After working together for 4 hours, C is closed and A and B fill the cistern in 9 hrs. Then find the time in which the cistern can be filled by pipe C?a)35 hrsb)40 hrsc)30 hrsd)90 hrsCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Railways 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Three pipes A, B and C can fill a cistern in 10 hrs. After working together for 4 hours, C is closed and A and B fill the cistern in 9 hrs. Then find the time in which the cistern can be filled by pipe C?a)35 hrsb)40 hrsc)30 hrsd)90 hrsCorrect answer is option 'C'. Can you explain this answer?.
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