The figure is not drawn to scale. Tank V measuring 53 cm by 41 cm by 22 cm contained 25.73 ℓ of water. Tank W measuring 40 cm by 25 cm by 37 cm contained 22 ℓ of water. Jack poured some water from Tank V into Tank W without spilling and the water level of Tank W rose to 26 cm. What was the height of water level left in Tank V?
1 ℓ = 1000 cm³
22 ℓ = 22000 cm³
25.73 ℓ = 25.73 x 1000 = 25730 cm³

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

Increase in the height of water in Tank W
= 26 - 22
= 4 cm

Volume of water poured into Tank W
= 40 x 25 x 4
= 4000 cm³ 

Volume of water left in Tank V
= 25730 - 4000
= 21730 cm³ 

Height of water left in Tank V
= 21730 ÷ 53 ÷ 41
= 10 cm

Answer(s): 10 cm