A rectangular container measuring 60 cm by 40 cm by 27 cm was ¹₈ filled with water. Sarah turned on a tap at 6.32 p.m. to fill more water into the container. She turned off the tap at 6.45 p.m. The container was ²₃ 
filled with water. Given that the water flowed out of the tap at the same rate, find the volume of water that flowed out of the tap in a minute. Give your answer in litres.
Volume of water in the container at first
= ¹₈ x 60 x 40 x 27
= 8100 cm³

Volume of water in the container in the end
= ²₃ x 60 x 40 x 27
= 43200 cm³

Volume of water added into the container by the tap
= 43200 - 8100
= 35100 cm³

1000 mℓ = 1 ℓ
35100 mℓ = 35100 ÷ 1000 = 35.1 ℓ

From 6.32 p.m. to 6.45 p.m.: 13 min

Volume of water that flowed out of the tap in a minute
= 35.1 ÷ 13
= 2.7 ℓ 

Answer(s): 2.7 ℓ