A rectangular container measuring 80 cm by 75 cm by 22 cm was ¹₄ filled with water. Winnie turned on a tap at 8.24 p.m. to fill more water into the container. She turned off the tap at 8.34 p.m. The container was ³₄ 
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
= ¹₄ x 80 x 75 x 22
= 33000 cm³

Volume of water in the container in the end
= ³₄ x 80 x 75 x 22
= 99000 cm³

Volume of water added into the container by the tap
= 99000 - 33000
= 66000 cm³

1000 mℓ = 1 ℓ
66000 mℓ = 66000 ÷ 1000 = 66 ℓ

From 8.24 p.m. to 8.34 p.m.: 10 min

Volume of water that flowed out of the tap in a minute
= 66 ÷ 10
= 6.6 ℓ 

Answer(s): 6.6 ℓ