The figure is not drawn to scale. Tank S measuring 50 cm by 44 cm by 22 cm contained 18.8 ℓ of water. Tank T measuring 40 cm by 25 cm by 37 cm contained 22 ℓ of water. Archie poured some water from Tank S into Tank T without spilling and the water level of Tank T rose to 32 cm. What was the height of water level left in Tank S?
1 ℓ = 1000 cm³
22 ℓ = 22000 cm³
18.8 ℓ = 18.8 x 1000 = 18800 cm³

Height of water in Tank T at first
= 22000 ÷ 40 ÷ 25
= 22 cm

Increase in the height of water in Tank T
= 32 - 22
= 10 cm

Volume of water poured into Tank T
= 40 x 25 x 10
= 10000 cm³ 

Volume of water left in Tank S
= 18800 - 10000
= 8800 cm³ 

Height of water left in Tank S
= 8800 ÷ 50 ÷ 44
= 4 cm

Answer(s): 4 cm