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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 -
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Explanations:

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