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Two pipes A and B can fill an empty cistern in 8 hours and 10 hours respectively. If both the pipes are simultaneously opened in an empty cistern, what part of the cistern is filled after 4 hours?
  • a)
    3/5
  • b)
    9/10
  • c)
    3/10
  • d)
    9/12
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
Two pipes A and B can fill an empty cistern in 8 hours and 10 hours re...
Part filled by pipe A in 1 hr. = 1/8
Part filled by pipe B in 1 hr. = 1/10
Part filled by pipes A & B in 1 hr. = 1/8 + 1/10 = 9/40
Part filled by pipes A & B in 2 hrs. = 4 × 9/40 = 9/10
∴ After 4 hours, 9/10 part of the cistern is filled
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Two pipes A and B can fill an empty cistern in 8 hours and 10 hours respectively. If both the pipes are simultaneously opened in an empty cistern, what part of the cistern is filled after 4 hours?a)3/5b)9/10c)3/10d)9/12Correct answer is option 'B'. Can you explain this answer?
Question Description
Two pipes A and B can fill an empty cistern in 8 hours and 10 hours respectively. If both the pipes are simultaneously opened in an empty cistern, what part of the cistern is filled after 4 hours?a)3/5b)9/10c)3/10d)9/12Correct answer is option 'B'. 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 Two pipes A and B can fill an empty cistern in 8 hours and 10 hours respectively. If both the pipes are simultaneously opened in an empty cistern, what part of the cistern is filled after 4 hours?a)3/5b)9/10c)3/10d)9/12Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for Railways 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Two pipes A and B can fill an empty cistern in 8 hours and 10 hours respectively. If both the pipes are simultaneously opened in an empty cistern, what part of the cistern is filled after 4 hours?a)3/5b)9/10c)3/10d)9/12Correct answer is option 'B'. Can you explain this answer?.
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