Pipe A can fill a tank in 30 minutes. Pipe B can fill the same tank in 50 minutes. In how much time (in minutes) both pipes together can fill the same tank?

Pipe A can fill a tank in 30 minutes. Pipe B can fill the same tank in

1.	Pipe A can fill a tank in 30 minutes. Pipe B can fill the same tank in 50 minutes. In how much time (in minutes) both pipes together can fill the same tank?
A.	15.25
B.	22.5
C.	18.75
D.	20
Answer» D. 20

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Pipe A can fill a tank in 30 minutes. Pipe B can fill the same tank in 50 minutes. In how much time (in minutes) both pipes together can fill the same tank?

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