A rectangular container measuring 80 cm by 75 cm by 21 cm was ¹₉ filled with water. Xandra turned on a tap at 5.34 p.m. to fill more water into the container. She turned off the tap at 5.48 p.m. The container was ⁷₁₀ 
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
= ¹₉ x 80 x 75 x 21
= 14000 cm³

Volume of water in the container in the end
= ⁷₁₀ x 80 x 75 x 21
= 88200 cm³

Volume of water added into the container by the tap
= 88200 - 14000
= 74200 cm³

1000 mℓ = 1 ℓ
74200 mℓ = 74200 ÷ 1000 = 74.2 ℓ

From 5.34 p.m. to 5.48 p.m.: 14 min

Volume of water that flowed out of the tap in a minute
= 74.2 ÷ 14
= 5.3 ℓ 

Answer(s): 5.3 ℓ