Question

the dimension of a hall are 10m x 7m x5m. if the density of air is 1.11 kgm-3 find the mass of air in the hall

Answer 1

density = 1.11kgm-3
volume of hall = 10 * 7 * 5 m-3
                       = 350m-3


as mass = density * volume

hence ans = 1.11 * 350 kg
                   = 388.5 kg

Answer 2

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