It takes 5 hours to fill a container using machine A. The same container can be filled using machine B in 10 hours. When the container is full, Machine C can fully empty the container in 20 hours. If all three machines start working on the same empty cont

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প্রশ্নঃ It takes 5 hours to fill a container using machine A. The same container can be filled using machine B in 10 hours. When the container is full, Machine C can fully empty the container in 20 hours. If all three machines start working on the same empty cont

  • ক. 1/2 hours
  • খ. 4 hours
  • গ. 2 hours
  • ঘ. 15 hours

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2 hours
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