4 identical 3-cm cubes are placed in an empty rectangular container of length 73 cm and width 25 cm. The container is then filled with water from a tap flowing at a rate of 7 litres per minute. It takes 11 minutes to fill up ⁴₅ 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 4 cubes
= 4 x 27
= 108 cm³ 

1 ℓ = 1000 mℓ
7 ℓ = 7000 mℓ

Volume of water in the container
= 11 x 7000
= 77000 mℓ

Volume of ⁴₅ of the container
= 77000 + 108
= 77108 mℓ

Volume of the container
= 77108 ÷ ⁴₅
= 77108 x ⁵₄
= 96385 mℓ

Base area
= 73 x 25
= 1825 cm² 

Height of the container
= 96385 ÷ 1825
≈ 52.8 cm

Answer(s): 52.8 cm