An empty rectangular container has a capacity of 186 ℓ and a height of 16 cm. At 8 a.m., Tap M is turned on to fill the container at a rate of 5 ℓ per minute for 17 minutes. After 3 minutes, Tap N is turned on to drain water from the container at a rate of 2 ℓ per minute for 11 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 
2 ℓ = 2000 cm³ 
186 ℓ = 186000 cm³

Volume of water flowed in from Tap M
= 17 x 5000
= 85000 cm³

Volume of water from drained from Tap N
= 11 x 2000
= 22000 cm³

Volume of water left in the container
= 85000 - 22000
= 63000 cm³

Base area of the container
= 186000 ÷ 16
= 11625 cm² 

Height of water left in the container
= 63000 ÷ 11625
≈ 5.4 cm

Answer(s): 5.4 cm