Q: Two pipes A and B can fill a tank completely in 5 hours and 8 hours, respectively. Pipe C can empty the tank completely in 10 hours. If all three pipes are opened simultaneously in an empty tank, then how much time will it take to fill the tank completely ?
A.
B.
6 hours
C.
3 hours
D.
Correct Answer:
Option A -
Explanations:
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