In the diagram not drawn to scale, Tank A and Tank B each has a button that, when pressed, will cause the water to flow out if the water level is higher than the hole. Tank A measures 138 cm by 50 cm by 134 cm. Tank B measures 51 cm by 22 cm by 63 cm. Tank C is 64 cm by 20 cm by 24 cm. Both holes are located at a height of 13 cm from the top of their respective containers. When Tank A is completely filled with water and both buttons are pressed, what will be the final water level in Tank C?
Volume of Tank A to pour into Tank B
= 138 x 50 x 13
= 89700 cm³

Volume of the Tank B that can be filled before overflow
= 51 x 22 x (63 - 13)
= 56100 cm³ 

Volume of water in Tank C
= 89700 - 56100
= 33600 cm³ 

Base area of Tank C
= 64 x 20
= 1280 cm² 

Final height of Tank C
= 33600 ÷ 1280
= 26.25 cm

Answer(s): 26.25 cm