Question
A tank can be filled by pipe A in 5 hours and emptied by
pipe B in 8 hours respectively. How much time will it take for the tank to be filled?Solution
A(fill)B(empty) 58 40 (total ) 85 tank fill in 1 hours =8-5=3 Â time will it take for the tank to be filled=40/3 =13(1/3)h
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