Level 3
Adam has some blue stickers and red stickers.
The number of blue stickers is decreased by 20% to 160.
The number of red stickers is decreased by 30% to 70.

1. How many stickers are there at first?
2. How many stickers are there in the end?

Level 3
Fabian, Gilbert and Henry had some marbles in the ratio of 2 : 3 : 5. Henry gave 40% of his marbles to Fabian and Gilbert. As a result, Fabian had the same number of marbles as Gilbert and Henry had 36 fewer marbles than Fabian.

1. What was the percentage increase in Fabian's marbles after receiving from Henry?
2. How many marbles did Gilbert have at first?

Level 3
Adam has some blue stickers and red stickers.
The number of blue stickers is increased by 20% to 60.
The number of red stickers is decreased by 30% to 70.

1. How many stickers are there at first?
2. How many stickers are there in the end?

Level 3
If Adam's income is increased by 50% and
Bryan's amount is decreased by 30%,
both will get $2100 each.

1. How much is Adam's income?
2. How much is Bryan's income?
3. What is the difference between Adam's income and Bryan's income?

Level 3
Jeanne's school organized a trip to Japan. At first, the ratio of the number of boys to the number of girls who planned to participate in the trip was 7 : 5. On the day of registration, 52 girls decided to withdraw and 52 more boys decided to join in. In the end, the number of girls who participated became 20% of the total participants for the trip. How many more boys than girls would visit Japan in the end?

Level 3
Adam has 200 red stickers, blue stickers and green stickers.
40% of the stickers are blue.
30% of the remaining stickers are red.
The rest are green stickers.

1. How many green stickers are there?
2. How many less red stickers than blue stickers?

Level 3
Adam has some blue stickers and red stickers.
If 50 blue stickers are added, 70% of the stickers will be red stickers.
If 200 blue stickers are added, 40% of the stickers will be red stickers.

1. How many blue stickers are there?
2. How many red stickers are there?

Level 3
Adam has some blue stickers and red stickers.
If 50 blue stickers are removed, 40% of the stickers will be red stickers.
If 200 blue stickers are removed, 70% of the stickers will be red stickers.

1. How many blue stickers are there?
2. How many red stickers are there?

Level 3
Adam has some blue stickers and red stickers.
If 100 blue stickers are added, 40% of the stickers will be red stickers.
If 50 blue stickers are removed, 70% of the stickers will be red stickers.

1. How many blue stickers are there?
2. How many red stickers are there?

Level 3
If Adam gives Bryan 30 stickers,
the number of stickers that Adam will have is 25% of Bryan's.
If Bryan gives Adam 3 stickers,
the number of stickers that Adam will have is 40% of Bryan's.

1. How many stickers does Adam have?
2. How many stickers does Bryan have?