In the diagram not drawn to scale, Tank R and Tank S each has a button that, when pressed, will cause the water to flow out if the water level is higher than the hole. Tank R measures 132 cm by 43 cm by 150 cm. Tank S measures 54 cm by 20 cm by 64 cm. Tank T is 60 cm by 20 cm by 25 cm. Both holes are located at a height of 13 cm from the top of their respective containers. When Tank R is completely filled with water and both buttons are pressed, what will be the final water level in Tank T?
Volume of Tank R to pour into Tank S
= 132 x 43 x 13
= 73788 cm³

Volume of the Tank S that can be filled before overflow
= 54 x 20 x (64 - 13)
= 55080 cm³ 

Volume of water in Tank T
= 73788 - 55080
= 18708 cm³ 

Base area of Tank T
= 60 x 20
= 1200 cm² 

Final height of Tank T
= 18708 ÷ 1200
= 15.59 cm

Answer(s): 15.59 cm