An empty rectangular container has a capacity of 36 ℓ and a height of 40 cm. At 9 a.m., Tap T is turned on to fill the container at a rate of 7 ℓ per minute for 16 minutes. After 5 minutes, Tap U is turned on to drain water from the container at a rate of 3 ℓ per minute for 5 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 
3 ℓ = 3000 cm³ 
36 ℓ = 36000 cm³

Volume of water flowed in from Tap T
= 16 x 7000
= 112000 cm³

Volume of water from drained from Tap U
= 5 x 3000
= 15000 cm³

Volume of water left in the container
= 112000 - 15000
= 97000 cm³

Base area of the container
= 36000 ÷ 40
= 900 cm² 

Height of water left in the container
= 97000 ÷ 900
≈ 107.8 cm

Answer(s): 107.8 cm