In the diagram not drawn to scale, Container P and Container Q each has a button that, when pressed, will cause the water to flow out if the water level is higher than the hole. Container P measures 136 cm by 57 cm by 135 cm. Container Q measures 54 cm by 22 cm by 69 cm. Container R is 60 cm by 25 cm by 25 cm. Both holes are located at a height of 15 cm from the top of their respective containers. When Container P is completely filled with water and both buttons are pressed, what will be the final water level in Container R?
Volume of Container P to pour into Container Q
= 136 x 57 x 15
= 116280 cm³

Volume of the Container Q that can be filled before overflow
= 54 x 22 x (69 - 15)
= 64152 cm³ 

Volume of water in Container R
= 116280 - 64152
= 52128 cm³ 

Base area of Container R
= 60 x 25
= 1500 cm² 

Final height of Container R
= 52128 ÷ 1500
= 34.752 cm

Answer(s): 34.752 cm