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Two pipes A and B can fill a tank in 36 minutes and 45 minutes respectively. Another pipe C can empty the tank in 30 minutes. First A and B are opened. After 7 minutes, C is also opened. The tank is filled up in
  • a)
    45 minutes
  • b)
    39 minutes
  • c)
    46 minutes
  • d)
    40 minutes
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
Two pipes A and B can fill a tank in 36 minutes and 45 minutes respect...
Part of the tank filled by pipes A and B in 1 minute

Part of the tank filled by these pipes in 7 minutes
= 7/20
Remaining unfilled part

When all three pipes are opened.

Time taken in filling 13/20 part

Required time = 39 + 7 = 46 minutes
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Two pipes A and B can fill a tank in 36 minutes and 45 minutes respectively. Another pipe C can empty the tank in 30 minutes. First A and B are opened. After 7 minutes, C is also opened. The tank is filled up ina)45 minutesb)39 minutesc)46 minutesd)40 minutesCorrect answer is option 'C'. Can you explain this answer? for SSC CGL 2025 is part of SSC CGL preparation. The Question and answers have been prepared according to the SSC CGL exam syllabus. Information about Two pipes A and B can fill a tank in 36 minutes and 45 minutes respectively. Another pipe C can empty the tank in 30 minutes. First A and B are opened. After 7 minutes, C is also opened. The tank is filled up ina)45 minutesb)39 minutesc)46 minutesd)40 minutesCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for SSC CGL 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Two pipes A and B can fill a tank in 36 minutes and 45 minutes respectively. Another pipe C can empty the tank in 30 minutes. First A and B are opened. After 7 minutes, C is also opened. The tank is filled up ina)45 minutesb)39 minutesc)46 minutesd)40 minutesCorrect answer is option 'C'. Can you explain this answer?.
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