AMO 2027 Grades 6-7 SET 6 - Self-study Question 1

A rectangular metal tank is 55cm long and 35cm wide. 20 balls of the same size are put into the tank when it is empty. Water is then poured in until the water level reaches 20cm. When the 20 balls are removed, the water level falls to 18cm. Find

a) the volume of one ball.

b) the volume of water that is poured into the rectangular tank.