Level 3
Oscar, Ethan and Fred had some balls. Ethan had 40% more balls than Oscar. Ethan had ³₅ of Fred's. After Oscar gave 18 balls to Ethan, he had ¹₂ of what Ethan had. How many more balls did Fred have than Ethan in the end?

Level 3
A carton packed with 1 packet of rice weighs 5.62 kg. The same carton when packed with 4 such packets of rice weighs 21.43 kg.

1. Find the mass of 1 packet of rice in kg.
2. Find the mass of the empty carton in kg.

Level 3
There were some avocados in 3 boxes, E, F and G. 30% of the number of avocados in Box E was equal to 60% of the number of avocados in Box F. The number of avocados in Box G was 60% of the total number of avocados in Box E and F. After Oscar removed 20% of the avocados in Box G, there were 88 more avocados in Box F than in Box G. In the end, how many avocados should be transferred from Box F to Box G so that the avocados in Box G would be the same as Box E?

Level 3
There were 286 students in a school. On the school anniversary, ⁵₆ of the girls and ⁴₅ of the boys came in green caps. The rest came in yellow caps. The number of boys who wore yellow caps was four times of the girls who wore yellow caps. How many students were in green caps that day?

Level
Box A and Box B are identical. ⁷₈ of Box A and ³₅ of Box B are filled with sand. The mass of Box B with its contents is ⁷₉ the mass of Box A with its contents. The total mass of the two boxes with their contents is 528 kg. Find the mass of an empty box.

Level 3
Zoe, Fanny, Eric and Olivia shared some pens. Zoe and Fanny took ¹₅ of the total number of pens while Eric and Olivia took the rest. Fanny had four times as many pens as Zoe and Olivia had 176 pens. Given that Eric had four times as many pens as Fanny, how many pens were there altogether?

Level 3
At a carnival, the children were put into two groups. ⁴₅ of Group F were boys and ²₃ of Group G were girls. Group G had twice as many children as Group F. There were 18 fewer boys in Group F than Group G.

1. What fraction of the total number of children at the carnival were boys? Give your answer in the simplest form.
2. What was the total number of children at the carnival?

Level 3
Glen, Ken, Jenson and Justin shared 105 stickers. Jenson received ¹₅ of the stickers. Glen received ¹₆ of the total amount of stickers received by Ken and Justin. Justin received four times as much stickers as Ken.

1. How many stickers did Glen receive?
2. How many more stickers did Jenson receive than Ken?

Level 3
When an ice box is packed with 25 identical bottles of soda, it has a mass of 18.4 kg. When the ice box is packed with 30 identical packets of milo, it has a mass of 7.5 kg. A bottle of soda weighs 470 g more than a packet of milo. What is the mass of the empty ice box in kg?

Level 3
Perry spent $162 on a jumpsuit. He spent ¹₉ of his remaining money on a sweater. If he still had ⁴₉ of his money left, how much did he have at first?

Level 3
Debbie spent $180 on a gown and ²₃ as much on a bag. She bought a pair of shoes that cost ⁴₅ as much as the bag. How much less did she spend on the pair of shoes than on the bag?

Level 3
Risa had a sum of money. She spent $308 on a blouse and ⁵₈ of the remainder on a windbreaker. She was left with ¹₁₀ of the original sum of money.

1. What was the total amount Risa spent?
2. How much money did Risa have at first?

Level 3
Elyse bought some pens. She gave ¹₆ of the pens to her cousin and sold ³₄ of the remaining pens. After that, she bought another 171 pens and had the same number of pens that she bought at first. How many pens did Elyse buy at first?

Level 3
Bryan bought some coupons for a funfair. He used ²₅ of the coupons on games and ³₇ of the remainder on food. He bought another 77 coupons and had 31 more coupons than he had at first. How many coupons did he have at first?

Level 3
A book shop sold ¹₁₀ of the books in the morning. ¹₅ of the remaining books are sold in the afternoon. The shop owner brought in another 172 books and there were 4 more books than there was at first. How many books were there in the shop at first?

Level 3
A survey was conducted with some pupils. ²₉ of them chose basketball as their favourite sport. ³₅ of the remaining pupils chose badminton. ¹₂ of those left chose swimming and the last 56 chose gymnastic. How many more pupils chose badminton than basketball?

Level 3
Erika spent ³₈ of her money on 6 notebooks and 10 post-it pads. The cost of one post-it pad was thrice the cost of one notebook. She bought some more post-it pads with ¹₄ of her remaining money. How many post-it pads did Erika buy altogether?

Level 3
A stall was selling flowers. ¹₃ of the earnings are from the sale of 9 lavenders and 17 sunflowers. Of the rest of the earnings, ³₄ are from the sale of lavenders and ¹₄ are from the sale of sunflowers. Each sunflower costs thrice as much as each lavender. How many flowers were sold?

Level 3
There are twice as many children as adults in a concert, and there are thrice as many boys as girls. If there are 3000 people in the concert,

1. how many adults are there?
2. how many children are there?
3. how many boys are there?

Level 3
A total of 460 children and adults went for a learning journey at the park. There were 80 more children than adults at the park. Given that the number of boys was 5 times the number of girls at the park, how many boys were at the park?