HARD
Andhra Pradesh State Cooperative Bank PO
IMPORTANT
Earn 100
There is a leak in the bottom of a cistern. When the cistern had no leak, it used to get filled in hours. It now takes half an hour longer for the cistern to be full. If the cistern is full of water, how long would it take in leaking itself empty, in case the water leaks out at double the rate after half the cistern becomes empty?
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Important Questions on Pipe and Cistern
HARD
Andhra Pradesh State Cooperative Bank PO
IMPORTANT
When the waste pipe is closed, two taps can separately fill a cistern in 10 and 12 minutes, respectively. When the waste pipe is open, they together fill it in 15 minutes. How long does it take the waste pipe to empty the cistern when the taps are closed?
HARD
Andhra Pradesh State Cooperative Bank PO
IMPORTANT
Two pipes A and B can fill up a tank in 6 minutes and 7 minutes, respectively. If they are opened for one minute, alternately, beginning with A, in how much time will they fill up the tank?
