Question

The length, breadth, and height of a cuboidal water tank are 7m, 6m and 15m, respectively. If 8400 litres of water is pumped out of the water tank, find the fall in the water level in the water tank.

Answer 1

this is the answer dudes

Answer 2

volume of the cuboidal tank

$= 7 \times 6 \times 15$
$= 630 \: {m}^{3}$
$= 630 \times 1000 \: litres$
$= 630000 \: litres$
amount of water after pumping
$630000 - 8400 = 621600litres$

$621.6 \: {m}^{3}$

i. e
$7 \times 6 \times h = 621.6$
$h = 14.8 \: m$
level of water after pumping is 14.8m