An empty rectangular container has a capacity of 134 ℓ and a height of 200 cm. At 6 a.m., Tap L is turned on to fill the container at a rate of 8 ℓ per minute for 20 minutes. After 14 minutes, Tap M is turned on to drain water from the container at a rate of 4 ℓ per minute for 22 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 
8 ℓ = 8000 cm³ 
4 ℓ = 4000 cm³ 
134 ℓ = 134000 cm³

Volume of water flowed in from Tap L
= 20 x 8000
= 160000 cm³

Volume of water from drained from Tap M
= 22 x 4000
= 88000 cm³

Volume of water left in the container
= 160000 - 88000
= 72000 cm³

Base area of the container
= 134000 ÷ 200
= 670 cm² 

Height of water left in the container
= 72000 ÷ 670
≈ 107.5 cm

Answer(s): 107.5 cm