In the diagram not drawn to scale, Tank F and Tank G each has a button that, when pressed, will cause the water to flow out if the water level is higher than the hole. Tank F measures 140 cm by 51 cm by 149 cm. Tank G measures 52 cm by 21 cm by 59 cm. Tank H is 70 cm by 26 cm by 28 cm. Both holes are located at a height of 13 cm from the top of their respective containers. When Tank F is completely filled with water and both buttons are pressed, what will be the final water level in Tank H?
Volume of Tank F to pour into Tank G
= 140 x 51 x 13
= 92820 cm³

Volume of the Tank G that can be filled before overflow
= 52 x 21 x (59 - 13)
= 50232 cm³ 

Volume of water in Tank H
= 92820 - 50232
= 42588 cm³ 

Base area of Tank H
= 70 x 26
= 1820 cm² 

Final height of Tank H
= 42588 ÷ 1820
= 23.4 cm

Answer(s): 23.4 cm