In the diagram not drawn to scale, Container B and Container C each has a button that, when pressed, will cause the water to flow out if the water level is higher than the hole. Container B measures 90 cm by 55 cm by 100 cm. Container C measures 35 cm by 10 cm by 80 cm. Container D is 80 cm by 40 cm by 30 cm. Both holes are located at a height of 20 cm from the top of their respective containers. When Container B is completely filled with water and both buttons are pressed, what will be the final water level in Container D? Express your answer in mixed number.
Volume of Container B to pour into Container C
= 90 x 55 x 20
= 99000 cm³

Volume of the Container C that can be filled before overflow
= 35 x 10 x (80 - 20)
= 21000 cm³ 

Volume of water in the Container D
= 99000 - 21000
= 78000 cm³ 

Base Area of the Container D
= 80 x 40
= 3200 cm² 

Final height of the container D
= 24¹²⁰⁰₃₂₀₀
= 24³₈ cm

Answer(s): 24³₈ cm