An empty rectangular tank has a capacity of 44 ℓ and a height of 100 cm. At 10 a.m., Tap X is turned on to fill the tank at a rate of 6 ℓ per minute for 19 minutes. After 7 minutes, Tap Y is turned on to drain water from the tank at a rate of 2 ℓ per minute for 11 minutes. What is the height of the water level in the tank in the end? Give the answer in 1 decimal place.
1 ℓ = 1000 cm³ 
6 ℓ = 6000 cm³ 
2 ℓ = 2000 cm³ 
44 ℓ = 44000 cm³

Volume of water flowed in from Tap X
= 19 x 6000
= 114000 cm³

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

Volume of water left in the tank
= 114000 - 22000
= 92000 cm³

Base area of the tank
= 44000 ÷ 100
= 440 cm² 

Height of water left in the tank
= 92000 ÷ 440
≈ 209.1 cm

Answer(s): 209.1 cm