An empty rectangular tank has a capacity of 195 ℓ and a height of 10 cm. At 9 a.m., Tap N is turned on to fill the tank at a rate of 5 ℓ per minute for 16 minutes. After 5 minutes, Tap P is turned on to drain water from the tank at a rate of 3 ℓ per minute for 23 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 
5 ℓ = 5000 cm³ 
3 ℓ = 3000 cm³ 
195 ℓ = 195000 cm³

Volume of water flowed in from Tap N
= 16 x 5000
= 80000 cm³

Volume of water from drained from Tap P
= 23 x 3000
= 69000 cm³

Volume of water left in the tank
= 80000 - 69000
= 11000 cm³

Base area of the tank
= 195000 ÷ 10
= 19500 cm² 

Height of water left in the tank
= 11000 ÷ 19500
≈ 0.6 cm

Answer(s): 0.6 cm