An empty rectangular container has a capacity of 108 ℓ and a height of 48 cm. At 7 a.m., Tap E is turned on to fill the container at a rate of 2 ℓ per minute for 19 minutes. After 3 minutes, Tap F is turned on to drain water from the container at a rate of 3 ℓ per minute for 6 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 
2 ℓ = 2000 cm³ 
3 ℓ = 3000 cm³ 
108 ℓ = 108000 cm³

Volume of water flowed in from Tap E
= 19 x 2000
= 38000 cm³

Volume of water from drained from Tap F
= 6 x 3000
= 18000 cm³

Volume of water left in the container
= 38000 - 18000
= 20000 cm³

Base area of the container
= 108000 ÷ 48
= 2250 cm² 

Height of water left in the container
= 20000 ÷ 2250
≈ 8.9 cm

Answer(s): 8.9 cm