One pipe can fill a pool in 6 hours and a second pipe can fill the same pool in 12 hours. If both pipes work together, how long will it take to fill the pool?

গণিত Pipe and Tank 07 Oct, 2020

প্রশ্ন One pipe can fill a pool in 6 hours and a second pipe can fill the same pool in 12 hours. If both pipes work together, how long will it take to fill the pool?

  • ক.
    4 hours
  • খ.
    4.5 hours
  • গ.
    3 hours
  • ঘ.
    3.5 hours

সঠিক উত্তর

4 hours

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