6 identical 5-cm cubes are placed in an empty rectangular container of length 80 cm and width 28 cm. The container is then filled with water from a tap flowing at a rate of 10 litres per minute. It takes 14 minutes to fill up ¹₂ of the container. What is the height of the container? Correct your answer to 1 decimal place.
Volume of 1 cube
= 5 x 5 x 5
= 125 cm³ 

Volume of 6 cubes
= 6 x 125
= 750 cm³ 

1 ℓ = 1000 mℓ
10 ℓ = 10000 mℓ

Volume of water in the container
= 14 x 10000
= 140000 mℓ

Volume of ¹₂ of the container
= 140000 + 750
= 140750 mℓ

Volume of the container
= 140750 ÷ ¹₂
= 140750 x ²₁
= 281500 mℓ

Base area
= 80 x 28
= 2240 cm² 

Height of the container
= 281500 ÷ 2240
≈ 125.7 cm

Answer(s): 125.7 cm