Tank Y, measuring 75 cm by 40 cm by 36 cm, was filled with water to the brim. Water was then poured from Tank Y to Tank Z, which has a base area of 900 cm² until the height of the water level in Tank Z became twice that of the water level in Tank Y. Find the volume of water in Tank Z, leaving your answer in cubic cm.
Volume of Tank Y
= 75 x 40 x 36
= 108000 cm³ 

Base area of Tank Y 
= 75 x 40
= 3000 cm²

Total base areas
= 3000 + 900 + 900
= 4800 cm² 

Height of the water level in Tank Y after pouring
= 108000 ÷ 4800
= 22.5 cm

Height of the water level in Tank Z after pouring
= 2 x 22.5 
= 45 cm

Volume of water in Tank Z
= 900 x 45
= 40500 cm³ 

Answer(s): 40500 cm³