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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 -
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Explanations:

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