Level 3
Bottle A and Bottle B have a total amount of 1050 mℓ of water. For Bottle B and Bottle C, the total amount of water is 1320 mℓ. The amount of water in Bottle A is 25 the amount of water in Bottle C. What is the average amount of water in the 3 bottles?
3 m
Level 2
In the figure not drawn to scale, a rectangular piece of paper of length 20 cm is folded at Corner C in such a way that BC is 13 of its breadth. Find the area of the shaded region.
2 m
Level 2
3 children share some stickers.
Adam has 15 of the stickers.
Bryan has 10 more stickers than Adam.
Chris has 20 stickers.
What is the total number of stickers the 3 children have?
3 m
Level 3
Adam has 190 stickers.
After 13 of the red stickers and
30 blue stickers are given away,
there is an equal number of red and blue stickers left.
  1. How many red stickers are there in the end?
  2. How many more blue stickers than red stickers are there at first?
  3. How many red stickers are given away?
3 m
Level 2
Alina spent 16 of her salary on a printer and 25 of the remainder on a notebook. If she saved the remaining $300, how much was her salary?
2 m
Level 2
Some children board a school bus.
At Bus Stop A, 25 of them alight
and 8 children board.
If there are 26 children in the bus now,
how many children are on the bus at first?
3 m
Level 3
Adam has 190 stickers.
After 13 of the red stickers is given away and
another 30 blue stickers are bought,
there is an equal number of red and blue stickers.
  1. How many red stickers are there in the end?
  2. How many less blue stickers than red stickers are there at first?
  3. How many red stickers are given away?
3 m
Level 2
Alina spent 16 of her salary on a printer and 23 of the remainder on a notebook. If she saved the remaining $300, how much was her salary?
2 m
Level 2
Alina spent 16 of her salary on a printer and 23 of the remainder on a notebook. If she saved the remaining $1300, how much was her salary?
2 m
Level 3
Adam has 240 stickers.
14 of them are red stickers,
18 of them are blue stickers
and the rest are green.
How many green stickers does he have?
4 m