Question

solution of this question

Answer 1

volume of hall=10*7*5
=350m
mass of air in hall=350*1.11kg
=388.5kg

Answer 2

Given

Dimensions of the hall = 10×7×5m^3

Volume of the hall =350m^3

Density of air=1.11kg/m^3

Mass=volume×density

Mass=350×1.11

Mass=388.5kg.....

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