Two pipes can fill a tank in 10 and 14 minutes respectively and a wast – McqOptions

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1.	Two pipes can fill a tank in 10 and 14 minutes respectively and a waste pipe can empty 4 gallons per minute. If all the pipes working together can fill the tank in 6 minutes, what is the capacity of the tank?
A.	120 gallons
B.	240 gallons
C.	450 gallons
D.	840 gallons
Answer» E.

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