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2015-10-30T00:09:25+05:30

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Volume = lbh

vol. = 50×15×3/5

vol = 2625m³

Since , D = M/V

1.30 × 2625 = M

M = 3412.5 kg
2 4 2
in h its 3.5 , by mistake / is typed
2015-10-30T14:06:03+05:30
Volume of Air = Volume of Dining hall = l×b×h = 50 m × 15 m × 3.5 m = 2625m²
Density of air = 1.30 kg/m³ (=mass/volume)
∴ Mass of air in hall = Density of air × Volume of air
                                =  1.30 kg/m³ × 2625 m² = 3412.5 kg 
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