An empty rectangular container has a capacity of 11 ℓ and a height of 20 cm. At 8 a.m., Tap Y is turned on to fill the container at a rate of 5 ℓ per minute for 19 minutes. After 3 minutes, Tap Z is turned on to drain water from the container at a rate of 3 ℓ per minute for 14 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 
5 ℓ = 5000 cm³ 
3 ℓ = 3000 cm³ 
11 ℓ = 11000 cm³

Volume of water flowed in from Tap Y
= 19 x 5000
= 95000 cm³

Volume of water from drained from Tap Z
= 14 x 3000
= 42000 cm³

Volume of water left in the container
= 95000 - 42000
= 53000 cm³

Base area of the container
= 11000 ÷ 20
= 550 cm² 

Height of water left in the container
= 53000 ÷ 550
≈ 96.4 cm

Answer(s): 96.4 cm