Level 3
A pool measuring 50 m x 25 m x 2 m was completely filled with water. The water was draining out of the tank at a constant rate and became completely empty after 25 minutes.
  1. What fraction of the pool was filled with water at the end of 24 minutes? Express the answer in the simplest form.
  2. How many litres of water was drained out of the pool at the end of 10 minutes?
4 m
Level 3
The figure is not drawn to scale. It is made up of 2 semicircles, X and Y, overlapping each other. The radius of semicircle X is 7 cm while the radius of semicircle Y is 14 cm. 37 of semicircle X is shaded. What fraction of the whole figure is not shaded? Express the answer in the simplest form. (Take π = 227)
3 m
Level 3
Faucet X can fill a container completely in 5 hours while Faucet Y takes 1 hour more to fill the same container completely. There is a hole at the bottom of the container which can empty the full container in 10 hours. How long does it take for the container to be completely filled if both faucets are turned on? Express the answer in mixed number of hours.
4 m
Level 2
Suresh has a mass of 45 kg. Dinesh is 3 kg lighter than Suresh.
  1. What is Dinesh's mass?
  2. Express Dinesh's mass as a fraction of Suresh's mass. Give your answer in its lowest terms.
4 m
Level 2
The total mass of Shan and Tony is 105 kg. Shan weighs 15 kg more than Tony.
  1. Find Tony's mass.
  2. Express Tony's mass as a fraction of Shan's mass in its simplest form.
4 m