Question

the length of a room is double its breadth.the area of the four walls is 192msquare.if the height of the room is 4m ,find its volume

Answer 1

let breadth =x
length = 2x

area of four wall = 2(L+B)*H = 192m^2
2(2x+x) *4 = 192
3x = 192/8 = 24
x = 8
2x= 16

volume = 16*8*4 = 512m^3