Two pipe A & B can fill a tank in 15 minutes and 20 minutes respectively. If both pipes are opend together, then after how much time B should be closed so that the tank is full in 10 minutes?

গণিত Pipe and Tank 07 Oct, 2020

প্রশ্ন Two pipe A & B can fill a tank in 15 minutes and 20 minutes respectively. If both pipes are opend together, then after how much time B should be closed so that the tank is full in 10 minutes?

  • ক.
    20/3
  • খ.
    8
  • গ.
    4
  • ঘ.
    6

সঠিক উত্তর

20/3

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