How many students can sit in a room with n single chairs and b doubleseated benches?

How many students can sit in a room with n single chairs and b doubleseated benches? Correct Answer 2b + n

       In 1 single chair seated 1 student So, in n single chair seated  = 1 × n= n studentsAgain,       In 1 bench, seated 2 studentsSo, in b bench seated = 2 × b = 2b students So Total number of Student can be seated in this classroom is = 2b + n Ans: 2b+n
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