Three pumps working 8 hours a day, can empty a tank in 2 days. How man – McqOptions

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1.	Three pumps working 8 hours a day, can empty a tank in 2 days. How many hours a day must 4 pumps work to empty the tank in 1 day?
A.	19
B.	14
C.	11
D.	12
Answer» E.

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