Level 2
A box is 700 g when it is filled with stickers.
If 35 of the stickers are removed,
the mass of the box with the remaining stickers is 400 g.
What is the mass of the empty box?
Level 3
A box is 400 g when it is 13 filled with stickers.
The same box is 700 g when it is 35 filled with stickers.
What is the mass of the empty box?
Level 2
Adam has some stickers.
He gives away equal number of stickers each day.
After 5 days,
he has 23 of the stickers left.
After another 7 days, he has 21 stickers left.
How many stickers does he have at first?
Level 3 Adam has some stickers. On Day 1, he gives away 28 stickers. On Day 2, he gives away 25 of the remaining stickers. Now, he has 37 of the stickers left. How many stickers does he have at first?
Level 3
Adam has some stickers.
On Day 1, he gives away 37 of the stickers.
On Day 2, he gives away 28 of the stickers.
On Day 3, he gives away 25 of the remaining stickers.
Now, he has 36 stickers left.
How many stickers does he have at first?
Level 2
There is a total of 600 children in a school. 80 of them like blue. There are 50 more children who like red than blue. Some children like yellow. The remaining 14 of the children like green. Find the ratio of the number of children who like green to those who like yellow.
Level 3
Adam has some stickers.
On Day 1, he gives away 27 of the stickers.
On Day 2, he gives away 25 of the remaining stickers.
On Day 3, he gives away 27 of the stickers.
Now, he has 36 stickers left.
How many stickers does he have at first?
Level 3
Adam has some stickers
He gives away 13 and an additional 15 stickers to Bryan.
He gives away 49 of the remainder and 10 more stickers to Chris
and 35 of the rest to David.
Adam has 30 stickers left.
How many stickers does he have at first?
