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1. How many pupils can be seated in a room with N single chairs and B double seated benches?
- A. nb
- B. nb
- C. nb
- D. nb
Answer: Option D
Explanation:
In 1 single chair seated 1 Man
So, in n single chair seated = 1 × n= n Man
again,
In 1 bench seated 2 Man
So, In b bench seated = 2 × b= 2b Man
So Total number of Man can be seated in this classroom is = 2b + n
Ans: 2b + n
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