Level 3
At first, a pot contained 25 ℓ of water. Keisha added another 12 ℓ of water into the pot. Then she used 29 of all the water in the pot. How much water did Keisha use? Express your answer as a fraction in its simplest form.
Level 3
There were 286 students in a school. On the school anniversary, 56 of the girls and 45 of the boys came in green caps. The rest came in yellow caps. The number of boys who wore yellow caps was four times of the girls who wore yellow caps. How many students were in green caps that day?
Level
Box A and Box B are identical. 78 of Box A and 35 of Box B are filled with sand. The mass of Box B with its contents is 79 the mass of Box A with its contents. The total mass of the two boxes with their contents is 528 kg. Find the mass of an empty box.
Level 3
Zoe, Fanny, Eric and Olivia shared some pens. Zoe and Fanny took 15 of the total number of pens while Eric and Olivia took the rest. Fanny had four times as many pens as Zoe and Olivia had 176 pens. Given that Eric had four times as many pens as Fanny, how many pens were there altogether?
