The figure is not drawn to scale. Container G is filled with water to a height of 30 cm. The water in Container G is poured into 2 rectangular tanks, Container H and Container J, such that the heights of the water in the 3 tanks are equal. Find the volume of water poured out of Container G in litres.
Volume of water
= 50 x 20 x 30
= 30000 cm³ 

Combined base area
= (50 x 20) + (25 x 18) + (15 x 10)
= 1000 + 450 + 150
= 1600 cm² 

Height of water after pouring
= 30000 ÷ 1600
= 18.75 cm

Difference in the height of water
= 30 - 18.75
= 11.25 cm

Volume of water poured out of Container G
= 50 x 20 x 11.25
= 11250 cm³ 

1000 cm³ = 1 ℓ
11250 cm³ = 11250 ÷ 1000 = 11.25 ℓ

Answer(s): 11.25 ℓ