Quantitative Aptitude :: Pipes & Cistern - Discussion
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Choose the correct option.
A leak in bottom of tank can empty a full tank in 12 minutes. If the leak is not there then two pipes A and B can fill the tank in 15 minutes and 20 minutes respectively. If the leak is active and both the pipes are open then How much time will be required to fill the tank:
A30 minutes
B60 minutes
C23 minutes
D35 minutes
ENone of these
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