A and B are two taps which can fill a tank individually in 10 minutes – McqOptions

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1.	A and B are two taps which can fill a tank individually in 10 minutes and 20 minutes respectively. However, there is a leakage at the bottom which can empty a filled tank in 40 minutes. If the tank is empty initially, how much time will both the taps take to fill the tank (leakage is still there) ?
A.	8 minutes
B.	7 minutes
C.	10 minutes
D.	15 minutes
Answer» B. 7 minutes

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