Two taps A and B can fill a tank in 10 minutes and 12 minutes respecti – McqOptions

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1.	Two taps A and B can fill a tank in 10 minutes and 12 minutes respectively. A drain tap pours out 15 liters of water per minute. If all three are opened together, then the full tank is emptied in 40 minutes, then what is the capacity of the tank?
A.	72 liters
B.	86 liters
C.	12 liters
D.	90 liters
Answer» B. 86 liters

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