In the diagram not drawn to scale, Tank G and Tank H each has a button that, when pressed, will cause the water to flow out if the water level is higher than the hole. Tank G measures 130 cm by 52 cm by 120 cm. Tank H measures 51 cm by 26 cm by 51 cm. Tank J is 65 cm by 25 cm by 22 cm. Both holes are located at a height of 13 cm from the top of their respective containers. When Tank G is completely filled with water and both buttons are pressed, what will be the final water level in Tank J?
Volume of Tank G to pour into Tank H
= 130 x 52 x 13
= 87880 cm³

Volume of the Tank H that can be filled before overflow
= 51 x 26 x (51 - 13)
= 50388 cm³ 

Volume of water in Tank J
= 87880 - 50388
= 37492 cm³ 

Base area of Tank J
= 65 x 25
= 1625 cm² 

Final height of Tank J
= 37492 ÷ 1625
= 23.072 cm

Answer(s): 23.072 cm