Q: 10. Two pipes A and B can fill a tank in 12 hours and 18 hours, respectively. Both pipes are opened simultaneously. In how much time will the empty tank be filled completely?
A.
7 hours 12 minutes
B.
9 hours 30 minutes
C.
8 hours
D.
10 hours 24 minutes
Correct Answer:
Option A -
Explanations:
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