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प्रश्न
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?
उत्तर
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.
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