6 identical 8-cm cubes are placed in an empty rectangular container of length 73 cm and width 21 cm. The container is then filled with water from a tap flowing at a rate of 6 litres per minute. It takes 11 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
= 8 x 8 x 8
= 512 cm³ 

Volume of 6 cubes
= 6 x 512
= 3072 cm³ 

1 ℓ = 1000 mℓ
6 ℓ = 6000 mℓ

Volume of water in the container
= 11 x 6000
= 66000 mℓ

Volume of ¹₂ of the container
= 66000 + 3072
= 69072 mℓ

Volume of the container
= 69072 ÷ ¹₂
= 69072 x ²₁
= 138144 mℓ

Base area
= 73 x 21
= 1533 cm² 

Height of the container
= 138144 ÷ 1533
≈ 90.1 cm

Answer(s): 90.1 cm