In the diagram not drawn to scale, Container R and Container S each has a button that, when pressed, will cause the water to flow out if the water level is higher than the hole. Container R measures 80 cm by 85 cm by 130 cm. Container S measures 55 cm by 20 cm by 70 cm. Container T is 50 cm by 30 cm by 40 cm. Both holes are located at a height of 20 cm from the top of their respective containers. When Container R is completely filled with water and both buttons are pressed, what will be the final water level in Container T? Express your answer in mixed number.
Volume of Container R to pour into Container S
= 80 x 85 x 20
= 136000 cm³

Volume of the Container S that can be filled before overflow
= 55 x 20 x (70 - 20)
= 55000 cm³ 

Volume of water in the Container T
= 136000 - 55000
= 81000 cm³ 

Base Area of the Container T
= 50 x 30
= 1500 cm² 

Final height of the container T
= 54
= 54 cm

Answer(s): 54 cm