Tap A can fill an empty tank in 10 h while tap B can empty a fully-fil – McqOptions

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1.	Tap A can fill an empty tank in 10 h while tap B can empty a fully-filled up tank in 12 h. Tap A is turned on first. After 2 hours, Tap B is also turned on. What will the total time (in hours) taken to fill the tank be?
A.	56
B.	52
C.	50
D.	48
Answer» D. 48

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