How many pupils can be seated in a room with N single chairs and B double seated benches?

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প্রশ্নঃ How many pupils can be seated in a room with N single chairs and B double seated benches?

  • ক. nb
  • খ. 2nb
  • গ. 2(b + n)
  • ঘ. 2b + n

সঠিক উত্তরঃ

2b + n
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