Question

The dimensions of a Cinema Hall are 100 m, 60 m, and 15 m. How many persons can sit in the hall if each requires 150 m³ of air? 

Answer 1

Volume of cinema hall = 100 x 60 x 15 = 90000 m³ 

150 m³ requires = 1 persons

90000 m³ requires = `1/150 xx 90000 = 600  "persons"`

Therefore, 600 persons can sit in the hall.