The figure is not drawn to scale. Tank H measuring 50 cm by 45 cm by 25 cm contained 25.14 ℓ of water. Tank J measuring 40 cm by 33 cm by 33 cm contained 33 ℓ of water. Jack poured some water from Tank H into Tank J without spilling and the water level of Tank J rose to 27 cm. What was the height of water level left in Tank H?
1 ℓ = 1000 cm³
33 ℓ = 33000 cm³
25.14 ℓ = 25.14 x 1000 = 25140 cm³

Height of water in Tank J at first
= 33000 ÷ 40 ÷ 33
= 25 cm

Increase in the height of water in Tank J
= 27 - 25
= 2 cm

Volume of water poured into Tank J
= 40 x 33 x 2
= 2640 cm³ 

Volume of water left in Tank H
= 25140 - 2640
= 22500 cm³ 

Height of water left in Tank H
= 22500 ÷ 50 ÷ 45
= 10 cm

Answer(s): 10 cm