Question

a rectangular tank of dimensions 30cm*12 cm*20 cm is 1/2 full of water. find the volume of water in tank.how much more water is needed to make tank 3/4 full?

Answer 1

1800cm^3

Step-by-step explanation:

volume of tank, V =lbh

1800V = 30×12×20

= 7200 cm^3

Volume of water, v = V/2

v = 7200/2 =3600cm^3

3/4 of total capacity =3/4 × 7200

=5400cm^3

additional water requirement =5400-3600

= 1800 cm^3