An empty rectangular tank has a capacity of 182 ℓ and a height of 14 cm. At 7 a.m., Tap B is turned on to fill the tank at a rate of 8 ℓ per minute for 16 minutes. After 8 minutes, Tap C is turned on to drain water from the tank at a rate of 2 ℓ per minute for 14 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 
8 ℓ = 8000 cm³ 
2 ℓ = 2000 cm³ 
182 ℓ = 182000 cm³

Volume of water flowed in from Tap B
= 16 x 8000
= 128000 cm³

Volume of water from drained from Tap C
= 14 x 2000
= 28000 cm³

Volume of water left in the tank
= 128000 - 28000
= 100000 cm³

Base area of the tank
= 182000 ÷ 14
= 13000 cm² 

Height of water left in the tank
= 100000 ÷ 13000
≈ 7.7 cm

Answer(s): 7.7 cm