The figure is not drawn to scale. Container N is filled with water to a height of 15 cm. The water in Container N is poured into 2 rectangular tanks, Container P and Container Q, such that the heights of the water in the 3 tanks are equal. Find the volume of water poured out of Container N in litres.
Volume of water
= 50 x 28 x 15
= 21000 cm³ 

Combined base area
= (50 x 28) + (24 x 20) + (15 x 8)
= 1400 + 480 + 120
= 2000 cm² 

Height of water after pouring
= 21000 ÷ 2000
= 10.5 cm

Difference in the height of water
= 15 - 10.5
= 4.5 cm

Volume of water poured out of Container N
= 50 x 28 x 4.5
= 6300 cm³ 

1000 cm³ = 1 ℓ
6300 cm³ = 6300 ÷ 1000 = 6.3 ℓ

Answer(s): 6.3 ℓ