Question

A swimming pool holds 900 cubic meters of water. If its length is 20 meters and its height is 3 meters, find its width

Answer 1

V=900m³

V=L*w*h

V=20*3*w
V=60*w

60*w=900

w=900/60
w=15m

Answer 2

$Volume \ of \ a \ Cuboid: \\ \\ V=9000 m^3 \\the \ length : \ l=20 \ m \\ the \ height: \ h=3 m \\ the \ width : \ w= ? \\ \\V= l\cdot w \cdot h \\ \\900 =20 \cdot w \cdot 3 \\ \\900=60w \ \ / :60\\ \\ w=15 \ m \\\\Answer : \ A \ swimming \ holds \ 15 \ meters\ the \ width .$