9 identical 3-cm cubes are placed in an empty rectangular container of length 89 cm and width 26 cm. The container is then filled with water from a tap flowing at a rate of 10 litres per minute. It takes 12 minutes to fill up ³₅ of the container. What is the height of the container? Correct your answer to 1 decimal place.
Volume of 1 cube
= 3 x 3 x 3
= 27 cm³ 

Volume of 9 cubes
= 9 x 27
= 243 cm³ 

1 ℓ = 1000 mℓ
10 ℓ = 10000 mℓ

Volume of water in the container
= 12 x 10000
= 120000 mℓ

Volume of ³₅ of the container
= 120000 + 243
= 120243 mℓ

Volume of the container
= 120243 ÷ ³₅
= 120243 x ⁵₃
= 200405 mℓ

Base area
= 89 x 26
= 2314 cm² 

Height of the container
= 200405 ÷ 2314
≈ 86.6 cm

Answer(s): 86.6 cm