aa class room is 12 m long ,5 m wide and 3 m high.how many pupils should it be used for if each pupil required 5 m^3 of air space
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L=12m,B=5m,H=3m
.:volume=180m^3
No. People can stay=180/5
=36 answer
.:volume=180m^3
No. People can stay=180/5
=36 answer
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