Q: An inlet pipe can fill a tank in 10 hours and an outlet pipe can empty the completely filled tank in 20 hours. Both the pipes are opened at 6:30 am. when will the tank get filled?
A.
1 a.m. next day
B.
2 a.m. next day
C.
12:00 midnight
D.
2:30 a.m. next day
Correct Answer:
Option D -
Explanations:
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