Level 3
A fruit seller sells only soursops and avocados. The ratio of soursops to avocados is 5 : 4. A total of 68 fruits are added. The number of soursops becomes 2 times as many as before and the number of avocados becomes 4 times as many as before. How many fruits are there in the end?

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
¹₄ of the number of sheep that Farmer Yang head was equal to ²₅ of the number of sheep that Farmer Tan had. When Farmer Yang sold 300 of his sheep and Farmer Tan bought another 40, the ratio of the number of sheep that Farmer Yang had to the number of sheep Farmer Tan had 7 : 5. What was the total number of sheep that the 2 farmers had at first?

Level 3
Will, Xavier and George had a total of 670 pens. The ratio of the number of pens Xavier had to the number of pens George had was 4 : 5. After Will and Xavier each gave away half of their pens, the 3 children had 395 pens left. How many pens did Xavier and George have at first?

Level 3
The ratio of the amount of money that Anna and Yvonne brought along was 4 : 5. For a friend's birthday present, Anna and Yvonne shared the cost in the ratio of 2 : 3. Anna used up ²₅ of her money to pay for her share. After paying for her share, Yvonne had $78 left. How much was the birthday present?

Level 3
Rael, Peter and Zane had a total of 839 erasers. The ratio of Peter's erasers to Zane's erasers was 4 : 3 at first. Rael and Peter each gave away ¹₂ of their erasers. Given that the three boys had 502 erasers left, how many erasers did Rael have at first?

Level 3
A rectangular tank, 80 cm by 50 cm by 40 cm, is filled with water to a height of 5 cm. The ratio of the volume of water in the tank to that in a pail is 5: 2. If ²₃ of the pail is filled with water, find

1. the volume of the pail.
2. the minimum number of such pails to fill the tank.

Level 3
The perimeter of the rectangular base of a tank is 400 cm. The ratio of its length to its breadth is 3 : 2. When 48 ℓ of water are poured into the tank, ²₅ of it is filled. Find the height of the tank.

Level 3
The total volume of water in Watering Can A, Watering Can B and Watering Can C was 205 mℓ. I poured out half the volume of water from Watering Can A, doubled the amount of water in Watering Can B and added 55 mℓ of water into Watering Can C. The ratio of the volume of water in Watering Can A to Watering Can B to Watering Can C is now 5 : 4 : 8. Find the total volume of water in the three watering cans now.