Level 3
The figure is not drawn to scale. It shows an empty container made up of a cuboid, measuring 40 cm by 25 cm by 25 cm and 2 similar cubes of sides 5 cm. Line A is 10 cm. 12.5 ℓ of water is poured into the top cube into the cuboid.
  1. What is the height of the water level from the base of the container?
  2. How much more water in cm3 must be poured in so that the water fills up half of the top cube?
5 m
Level 3 PSLE
There was a total of 22 000 cm3 of water in rectangular tanks A and B at first. The height of the water level in tank B was 6 cm above that of tank A.
  1. Find the height of the water level in tank X.
  2. Ann poured 4200 cm3 of water out of tank Y. Tank Y was then half filled with water. What was the height of tank Y?
5 m