An empty rectangular container has a capacity of 151 ℓ and a height of 125 cm. At 7 a.m., Tap E is turned on to fill the container at a rate of 8 ℓ per minute for 18 minutes. After 7 minutes, Tap F is turned on to drain water from the container at a rate of 10 ℓ per minute for 7 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 
10 ℓ = 10000 cm³ 
151 ℓ = 151000 cm³

Volume of water flowed in from Tap E
= 18 x 8000
= 144000 cm³

Volume of water from drained from Tap F
= 7 x 10000
= 70000 cm³

Volume of water left in the container
= 144000 - 70000
= 74000 cm³

Base area of the container
= 151000 ÷ 125
= 1208 cm² 

Height of water left in the container
= 74000 ÷ 1208
≈ 61.3 cm

Answer(s): 61.3 cm