Question

a room is 12m long ,7.8m broad and 5m high (a)how much air does it contain? (b)how many boys can sit in the room if each boy occupies 2.6 cu. cm of air space

Answer 1

the vol. of boy should be 2.6 cu. m If the vol. of boy is 2.6 cu.m Then, a). vol. of room= 12m*7.8m*5m =468 cu.m b). No. of boys= vol. of room÷vol. of boy =468÷2.6 =180