The figure is not drawn to scale. Tank U measuring 48 cm by 43 cm by 24 cm contained 18.32 ℓ of water. Tank V measuring 40 cm by 25 cm by 37 cm contained 24 ℓ of water. Mark poured some water from Tank U into Tank V without spilling and the water level of Tank V rose to 32 cm. What was the height of water level left in Tank U?
1 ℓ = 1000 cm³
24 ℓ = 24000 cm³
18.32 ℓ = 18.32 x 1000 = 18320 cm³

Height of water in Tank V at first
= 24000 ÷ 40 ÷ 25
= 24 cm

Increase in the height of water in Tank V
= 32 - 24
= 8 cm

Volume of water poured into Tank V
= 40 x 25 x 8
= 8000 cm³ 

Volume of water left in Tank U
= 18320 - 8000
= 10320 cm³ 

Height of water left in Tank U
= 10320 ÷ 48 ÷ 43
= 5 cm

Answer(s): 5 cm