Given:
The first pipe can fill the tank in 9 hours.
The second pipe can empty the tank in 36 hours.
Solution:
Capacity of Tank = LCM of 9 and 36 = 36 unit
Efficiency of A = unit\day
Efficiency of other pipe =
Combine efficiency = 4 - 1 = 3
They will fill the two- third tank = hours
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100 Questions
100 Marks
90 Mins English English100 Questions100 Marks90 Mins English English40 Questions30 Marks25 Mins EnglishTwo pipes A and B can fill a tank in 28 hours and 21 hours, respectively. If both the pipes are opened simultaneously, then the time taken (in hours) to fill the tank is:
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A pipe can fill a water tank in 36 minutes, and another can fill it in 48 minutes, but a third pipe can empty it in 18 minutes. The first two pipes are kept open for 16 minutes at the beginning, and then the third pipe is also opened. How long does it take to empty the tank?
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