Container W, measuring 65 cm by 20 cm by 42 cm, was filled with water to the brim. Water was then poured from Container W to Container X, which has a base area of 400 cm² until the height of the water level in Container X became twice that of the water level in Container W. Find the volume of water in Container X, leaving your answer in cubic cm.
Volume of Container W
= 65 x 20 x 42
= 54600 cm³ 

Base area of Container W 
= 65 x 20
= 1300 cm²

Total base areas
= 1300 + 400 + 400
= 2100 cm² 

Height of the water level in Container W after pouring
= 54600 ÷ 2100
= 26 cm

Height of the water level in Container X after pouring
= 2 x 26 
= 52 cm

Volume of water in Container X
= 400 x 52
= 20800 cm³ 

Answer(s): 20800 cm³