Level 3
The ratio of the number of blue stickers to red stickers is 5 : 2.
After Adam buys another 20 red stickers and gives away 10 blue stickers,
the ratio becomes of the number of blue stickers to red stickers is 3 : 2.
How many stickers does Adam have now?

Level 3
A coin bank contains some twenty-cent and fifty-cent coins in the ratio of 2 : 5.
When 10 fifty-cent coins are taken out and
exchanged with some twenty-cent coins of the same value,
the ratio became 8 : 9.
Find the sum of money in the coin box in dollars.

Level 3
Last year, there were 48 members in a school music club. The number of girls was ³₅ the number of boys.

1. What percentage of the members were girls last year?
2. This year, 4 boys left the club and 6 girls joined the club. What percentage of the members are girls this year?

Level 2
Mr Seetoh paid a total of $20 for one adult and two child tickets. If a child ticket was ³₄ of the price of an adult ticket, what was the price of an adult ticket?

Level 3
There are 20% as many green beads as red beads in May's collection of beads. The number of purple beads is 30% fewer than the number of red beads. There are 330 more purple beads than green beads.

1. Find the total number of beads in the collection.
2. What percentage are the number of red beads as compared to the number of purple beads? Leave your answer as a mixed number in its simplest form.

Level 2
Anna's money is ³₄ of Samantha's money. Samantha gives ¹₂ of her money to Anna. Express Anna's money as a fraction of Samantha's money after Anna received the money from Samantha. (Give your answer as a mixed number.)

Level 3
Abby, Becca, Clara and Demi jointly contributed to the cost of a present for their friend. Abby's contribution is ²₅ of the total contribution made by the four girls. The ratio of Demi's contribution to the total of Becca's and Clara's contribution is 4 : 1. What is the total contribution by the four girls if Becca's contribution is ¹₅ of Clara's contribution and the total amount contributed by Abby and Demi is $132?

Level 3
Tabitha purchased a bottle of rose syrup to make drinks. She used ³₇ of the liquid in January. She then used the remaining syrup in February and March in the ratio 3 : 7. Given that the amount of the rose syrup used in January was 0.18 ℓ more than that used on the February, how many millilitres of rose syrup did the bottle contain at first?

Level 3
There were some red, blue and green pens in a box. ¹₉ of the pens were blue. The ratio of the number of red pens to the number of green pens was 3 : 5. There were 288 fewer blue pens than green pens.

1. Find the ratio of the number of red pens to the number of blue pens to the number of green pens in the box.
2. How many green pens were there?