Tank J, measuring 70 cm by 30 cm by 33 cm, was filled with water to the brim. Water was then poured from Tank J to Tank K, which has a base area of 700 cm² until the height of the water level in Tank K became twice that of the water level in Tank J. Find the volume of water in Tank K, leaving your answer in cubic cm.
Volume of Tank J
= 70 x 30 x 33
= 69300 cm³ 

Base area of Tank J 
= 70 x 30
= 2100 cm²

Total base areas
= 2100 + 700 + 700
= 3500 cm² 

Height of the water level in Tank J after pouring
= 69300 ÷ 3500
= 19.8 cm

Height of the water level in Tank K after pouring
= 2 x 19.8 
= 39.6 cm

Volume of water in Tank K
= 700 x 39.6
= 27720 cm³ 

Answer(s): 27720 cm³