Tank N, measuring 50 cm by 30 cm by 38 cm, was filled with water to the brim. Water was then poured from Tank N to Tank P, which has a base area of 300 cm² until the height of the water level in Tank P became thrice that of the water level in Tank N. Find the volume of water in Tank P, leaving your answer in cubic cm.
Volume of Tank N
= 50 x 30 x 38
= 57000 cm³ 

Base area of Tank N 
= 50 x 30
= 1500 cm²

Total base areas
= 1500 + 300 + 300 + 300
= 2400 cm² 

Height of the water level in Tank N after pouring
= 57000 ÷ 2400
= 23.75 cm

Height of the water level in Tank P after pouring
= 3 x 23.75 
= 71.25 cm

Volume of water in Tank P
= 300 x 71.25
= 21375 cm³ 

Answer(s): 21375 cm³