Question

A room is 12m long,7.8m broad and 5m high. How many boys can sit in the room ,if each boy occupies 2.6 cubic metres of air space

Answer 1

Answer:

180 boys

Step-by-step explanation:

no.of boys = volume of room /volume occupied by one boy

12*7.8*5/2.6 =468/2.6=180

Answer 2

180 boys

Step-by-step explanation:

Given,

$Length=l=12m$

$Breadth=b=7.8m$

$Height=h=5m$

Each boy occupies 2.6 cubic meters air

Let no of boys present in a room is =n

Solution,

Volume of cuboid $=V=l\times b\times h$

Room is in shape of cuboid

$V=12\times 7.8\times 5$

$V=468m^{3}$

$n\times 2.6=468$

$n=468/2.6$

$n=180$