1) A tank 60 cm long, 40 cm wide and 20 cm high is half-filled with water. If all the water is poured into an empty fish tank with a rectangular base measuring 48 cm by 25 cm, find the depth of the water in the fish tank.

2) Tank A, measuring 20 cm by 30 cm by 10 cm, is full of water. Tank B, measuring 30 cm by 50 cm by 10 cm is 2/3 full of water. Find the difference in the amount of water in the two tanks. Give your answer in liters. (1 liter = 1,000 cm cubed)

3) 9 liters of cooking oil are poured into rectangular containers, filling each up to a height of 30 cm. The base of each container measures 5 cm by 3 cm. How many containers are needed? (1 liter = 1,000 cm cubed)

4) A cubic tank of side 36 cm is half-filled with water. How much will the water level rise when a metal block of volume 5184 cm cubed is placed in the tank?