A tap can empty a tank in 30 minutes. A second tap can empty it in 45 – McqOptions

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1.	A tap can empty a tank in 30 minutes. A second tap can empty it in 45 minutes. If both the taps operate simultaneously, how much time is needed to empty the tank ?
A.	14 minutes
B.	15 minutes
C.	18 minutes
D.	30 minutes
Answer» D. 30 minutes

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