A tank can be filled by tap A in 16 hrs and by tap B in 20 hrs. Both the taps are kept opened for 8 hrs and then A is closed. In how many more hours will the tank be completely filled?

A tank can be filled by tap A in 16 hrs and by tap B in 20 hrs. Both t

1.	A tank can be filled by tap A in 16 hrs and by tap B in 20 hrs. Both the taps are kept opened for 8 hrs and then A is closed. In how many more hours will the tank be completely filled?
A.	2 hrs
B.	12 2?3
C.	10 hrs
D.	0.5 hrs
Answer» B. 12 2?3

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A tank can be filled by tap A in 16 hrs and by tap B in 20 hrs. Both the taps are kept opened for 8 hrs and then A is closed. In how many more hours will the tank be completely filled?

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