Question:

Level 3

10 days ago, Ruth had a total of 250 green and violet stickers. 40% of her stickers were violet stickers. Today, her father gave her some more stickers. As a result, her green stickers increased by 30%. Now, 50% of her stickers are violet stickers. How many violet stickers did her father give her?

5 m
10 days ago, Ruth had a total of 250 green and violet stickers. 40% of her stickers were violet stickers. Today, her father gave her some more stickers. As a result, her green stickers increased by 30%. Now, 50% of her stickers are violet stickers. How many violet stickers did her father give her?

Level 3 PSLE

Mr Devon bought an humidifier for $216 after a discount of 25%.

5 m
Mr Devon bought an humidifier for $216 after a discount of 25%.

- What was the price of the humidifier before discount?
- He paid $128 for a fan. The total discount for the humidifier and fan was $104. What was the percentage discount given for the fan?

Level 3

A newly opened furniture store was having a storewide discount of 10% off its usual price. Mrs Tan used her credit card to purchase a sofa set and Mr Nair used cash to pay for a similar sofa set.

A newly opened furniture store was having a storewide discount of 10% off its usual price. Mrs Tan used her credit card to purchase a sofa set and Mr Nair used cash to pay for a similar sofa set.

- How much did Mrs Tan pay in the end after GST? Round off your answer to the nearest cent.
- How much did Mr Nair pay in the end after GST? Round off your answer to the nearest ten cent.

5 m

Level 3

Dina spent 60% of her money on a number of pens. She spent 25% of the remaining money on a few highlighters and 50% of what was left on a number of sketchbooks.

5 m
Dina spent 60% of her money on a number of pens. She spent 25% of the remaining money on a few highlighters and 50% of what was left on a number of sketchbooks.

- What fraction of her money was left?
- Given that the pens cost $36 more than the sketchbooks, find the sum of money Dina had at first.

Level 3

A philanthropist bought a total of $19380 worth of toys, textbooks and clothes to donate to the needy children. The number of clothes bought was 20% more than the number of toys bought but 20% fewer than the number of textbooks bought. The toy cost $12 each and was $2 more expensive than each textbook but 40% cheaper than each piece of clothes. How many toys and textbooks did the philanthropist donate to the needy children?

5 m
A philanthropist bought a total of $19380 worth of toys, textbooks and clothes to donate to the needy children. The number of clothes bought was 20% more than the number of toys bought but 20% fewer than the number of textbooks bought. The toy cost $12 each and was $2 more expensive than each textbook but 40% cheaper than each piece of clothes. How many toys and textbooks did the philanthropist donate to the needy children?

Level 3

Tammy baked 420 pies. 40% of them were peach pies. How many more peach pies must Tammy bake so that 80% of her pies are peach pies?

5 m
Tammy baked 420 pies. 40% of them were peach pies. How many more peach pies must Tammy bake so that 80% of her pies are peach pies?

Level 3

Every week, Mrs. Tan will collect 40% more vitamin pills than Mrs Nurul from the pharmacy. They each consumed 14 vitamins weekly and will leave the rest for their family members to consume the rest. After some time, both ladies consumed a total of 364 vitamin pills and Mrs. Tan's family members consumed 468 more vitamin pills than Mrs. Nurul's family.

5 m
Every week, Mrs. Tan will collect 40% more vitamin pills than Mrs Nurul from the pharmacy. They each consumed 14 vitamins weekly and will leave the rest for their family members to consume the rest. After some time, both ladies consumed a total of 364 vitamin pills and Mrs. Tan's family members consumed 468 more vitamin pills than Mrs. Nurul's family.

- How many members are there in Mrs. Tan's family, if they each consume 14 pills weekly?
- How many vitamin pills does Mrs Nurul collect from the pharmacy each week?

Level 3

There was an equal number of mangoes and pineapples. On Monday, some mangoes were added, such that the number of mangoes increased by 80%. On Tuesday, the number of mangoes further increased by 50% and the number of pineapples decreased by 20%. There were 38 more mangoes than pineapples in the end. How many mangoes and pineapples were there altogether at first?

5 m
There was an equal number of mangoes and pineapples. On Monday, some mangoes were added, such that the number of mangoes increased by 80%. On Tuesday, the number of mangoes further increased by 50% and the number of pineapples decreased by 20%. There were 38 more mangoes than pineapples in the end. How many mangoes and pineapples were there altogether at first?

Level 3

At first, the ratio of the number of boys to the number of girls at a school playground was 2 : 5. When 48 girls and some boys entered the playground, the number of girls increased by 12% and the total number of children at the playground increased by 20%.

5 m
At first, the ratio of the number of boys to the number of girls at a school playground was 2 : 5. When 48 girls and some boys entered the playground, the number of girls increased by 12% and the total number of children at the playground increased by 20%.

- How many boys were there at first?
- What percentage of the children at the playground were boys in the end? Express your answer as a mixed number.

Level 3

The usual price of a notebook sold at Shop A and B is $20. During a sale, a discount of 20% is given to every notebook sold at Shop A. At Shop B, a discount of 50% is given to the 3rd notebook for every 3 notebooks sold. How much cheaper would it be if Lily buys 8 notebooks from Shop A instead of Shop B?

5 m
The usual price of a notebook sold at Shop A and B is $20. During a sale, a discount of 20% is given to every notebook sold at Shop A. At Shop B, a discount of 50% is given to the 3rd notebook for every 3 notebooks sold. How much cheaper would it be if Lily buys 8 notebooks from Shop A instead of Shop B?