Level 3
A tank measuring 30 cm by 24 cm by 20 cm was being filled by two taps. Tap X delivered water at a rate of 140 cm3 per minute while Tap Y delivered water at a rate of 100 cm3 per minute. How long did the 2 taps take to fill the tank completely? Express your answer in min.
3 m
Level 3
At first, Beaker A and Beaker B contained 0.6 ℓ and 1.6 ℓ of water respectively. Some water from Beaker B was poured into Beaker A with no water spilling over. In the end, there was as much water in Beaker A as in Beaker B. How much water was poured from Beaker B to Beaker A?
3 m
Level 3
A pitcher can hold 5 ℓ of water.
A tank can hold water from 2 pitchers of water.
A container can hold water from 3 tanks of water.
  1. Find the ratio of the volume of water that a pitcher, a tank and a container can hold.
  2. Find the percentage of water that a pitcher can hold as compared to a tank.
  3. Find the volume of 2 tanks.
  4. Find the volume of 3 containers.
4 m
Level 3
The figure shown is a staircase made up of 1-cm cubes. What is the volume of the total number of cubes up to Step 20?
3 m
Level 2
The length of cube A is 3 times the length of cube B. Find the ratio of the volume of cube A to cube B.
2 m