In the diagram not drawn to scale, Container U and Container V each has a button that, when pressed, will cause the water to flow out if the water level is higher than the hole. Container U measures 70 cm by 35 cm by 100 cm. Container V measures 75 cm by 10 cm by 60 cm. Container W is 90 cm by 30 cm by 70 cm. Both holes are located at a height of 20 cm from the top of their respective containers. When Container U is completely filled with water and both buttons are pressed, what will be the final water level in Container W? Express your answer in mixed number.
Volume of Container U to pour into Container V
= 70 x 35 x 20
= 49000 cm³

Volume of the Container V that can be filled before overflow
= 75 x 10 x (60 - 20)
= 30000 cm³ 

Volume of water in the Container W
= 49000 - 30000
= 19000 cm³ 

Base Area of the Container W
= 90 x 30
= 2700 cm² 

Final height of the container W
= 7¹⁰⁰₂₇₀₀
= 7¹₂₇ cm

Answer(s): 7¹₂₇ cm