An empty rectangular container has a capacity of 174 ℓ and a height of 125 cm. At 6 a.m., Tap U is turned on to fill the container at a rate of 7 ℓ per minute for 17 minutes. After 6 minutes, Tap V is turned on to drain water from the container at a rate of 5 ℓ per minute for 17 minutes. What is the height of the water level in the container in the end? Give the answer in 1 decimal place.
1 ℓ = 1000 cm³ 
7 ℓ = 7000 cm³ 
5 ℓ = 5000 cm³ 
174 ℓ = 174000 cm³

Volume of water flowed in from Tap U
= 17 x 7000
= 119000 cm³

Volume of water from drained from Tap V
= 17 x 5000
= 85000 cm³

Volume of water left in the container
= 119000 - 85000
= 34000 cm³

Base area of the container
= 174000 ÷ 125
= 1392 cm² 

Height of water left in the container
= 34000 ÷ 1392
≈ 24.4 cm

Answer(s): 24.4 cm