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?

Level 3
Adam has some blue stickers and red stickers.
If 500 blue stickers are added, 30% of the stickers will be red stickers.
If 500 red stickers are added, 20% of the stickers will be blue stickers.

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

Level 3
Ryan owned two shops selling milk tea. Shop A earned 40% more money than Shop B on Monday. On Tuesday, Shop A lost $110 while Shop B earned another $150. In the end, Shop B contributed to ⁵₈ of the total earnings of the two shops over the two days operation. How much did Shop A earn over the two days?

Level 3
Adam has some blue stickers and red stickers.
If 300 blue stickers are removed, 25% of the stickers will be blue stickers.
If 200 red stickers are removed, 20% 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 removed, 75% of the stickers will be blue stickers.
If 500 red stickers are added, 20% of the stickers will be blue stickers.

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

Level 3
Adam has 300 stickers in 3 colours.
40% of the stickers are blue.
The number of red stickers is ¹₃ that of yellow stickers.

1. What percentage of the stickers are yellow?
2. How many red stickers are there?

Level 3
Tank E contained 4 times as many guppies as Tank F. When 10% of the guppies in Tank E and 10% of the guppies in Tank F were transferred to Tank G, Tank G had 120 guppies, which was 20% more guppies than before. How many less guppies were there in Tank F than Tank E in the end?

Level 3
Cathy, Zoe and Ruth went shopping together. They brought a total of $1633 with them. Cathy spent 50% of her money. Zoe spent $224 and Ruth spent twice as much money as Cathy. In the end, they had $785 left. How much money did Zoe and Ruth have altogether in the end?

Level 3
In a school, there is a total of 400 people.
30% are adults.
The rest are children.
The number of boys and girls is in the ratio of 2 : 5.

1. What percentage of the people are boys?
2. How many girls are there?

Level 3
In a school, there is a total of 400 people.
30% are adults.
The rest are children.
The number of boys and girls is in the ratio of 5 : 9.

1. What percentage of the people are boys?
2. How many girls are there?

Level 3
Cathy had some coin collection. ¹₄ of them were red and the rest were yellow. She gave away 135 of the yellow coins and 50% of the red coins. She then had ¹₅ of her coin collection left. How many coins did Cathy give away?

Level 3
Adam has some money.
Adam spends $300 on some stickers and
80% of the remainder on some marbles.
In the end, he has ¹₈ of the total amount left.

1. How much does Adam have at first?
2. How much more does Adam spend on marbles than on stickers?

Level 3
Ken has 30% more stamps than Vincent. Tim has 80% the number of stamps Ken has.

1. What is the ratio of the number of Vincent's stamps to the number of Tim's stamps?
2. If the total number of stamps of Ken's and Tim's is 150 more than Vincent's, how many stamps does Ken have?

Level 3 PSLE
There are some stickers in albums A and B. 50% of the stickers in album A and 20% of the stickers in album B are round stickers. There is an equal number of square stickers in both albums. If there are 51 more round stickers in album A than in album B, how many stickers are there in both albums altogether?

Level 3
A bag had some violet erasers and yellow erasers in the ratio of 3 : 1. Queenie removed 35 violet erasers and put another 15 yellow erasers into the bag. There is now 50% as many violet erasers as yellow erasers in the bag. How many violet erasers were in the bag at first?

Level 3
³₄ of Eva's money was equal to ¹₂ of Anna's money at first. After Eva spent $1.70 and Anna spent $0.70, Eva had ³₅ as much money as Anna.

1. How much did Anna have at first? Express the answer(s) in 2 decimal places.
2. How much did Eva have in the end? Express the answer(s) in 2 decimal places.

Level 3
Entrance tickets to the concert are $8 each for adults. The ticket for a child costs 25% less. Last Sunday, 10% of the tickets sold were for children and the total sales of the tickets was $3900. How many of the tickets sold were for adults?

Level 3
At a theme park, each adult ticket cost $25 and each child ticket cost $12. On Monday, the number of adult tickets sold was 120 less than the number of child tickets. On Tuesday, the number of adult tickets sold decreased by 10% while the number of child tickets sold increased by 30%. If a total of 816 tickets were sold on Tuesday, how much money was collected on Monday?

Level 3
The auditorium had 1050 seats. There were 25% fewer $40-seats than $5-seats. 50% of the $5-seats and some $40-seats were sold. A total of $16180 was collected. How many seats were unsold?

Level 3
During a telematch, each group of students was supposed to collect as many coloured candies as possible. Each colour represented a certain point as tabulated:

Yellow 3 points
Pink 6 points
Blue 7 points

In each container, the number of yellow candies was 20% more than the number of blue candies and 10% less than the number of pink candies. Given that the total possible points if the group managed to collect all the candies were 558 points, how many candies were not yellow in colour?