Question:

Level 3

The figure is not drawn to scale. ∠BAC = 40°, BA = BC and AF//BE. Given that ∠z is^{1}_{2} of ∠x and ∠z is 3 times of ∠y, find

The figure is not drawn to scale. ∠BAC = 40°, BA = BC and AF//BE. Given that ∠z is

- ∠z
- ∠w.

4 m

Level 2

In a room,^{5}_{7} of the girls wore cardigans. After 86 girls who wore cardigans left the room, the percentage of girls who wore cardigans decreased to 10%. How many girls in the room did not wear cardigans?

2 m
In a room,

Level 2

1104 people went to a park.^{3}_{8} were adults. Some children left halfway and the ratio of the number of adults to the number of children became 6 : 7. How many children left the park halfway?

2 m
1104 people went to a park.

Level 3

There were some pencils in Box A and Box B. After Carl transferred^{3}_{4} of the pencils from Box A to Box B, the ratio of the number of pencils in Box A to that in Box B changed to 2 : 9. Find the ratio of the numbers of pencils in Box A to the number of pencils in Box B at first.

3 m
There were some pencils in Box A and Box B. After Carl transferred

Level 3

At a stall, the ratio of watermelons to coconuts was 8 : 13. After Kate bought two-thirds of the coconuts, there was a total of 111 watermelons and coconuts left at the stall. How many fruits were there at first?

3 m
At a stall, the ratio of watermelons to coconuts was 8 : 13. After Kate bought two-thirds of the coconuts, there was a total of 111 watermelons and coconuts left at the stall. How many fruits were there at first?

Level 3

At a zoo, there were^{3}_{5} as many adults as children at first. After 46 adults left, there were 116 more children than adults remaining at a zoo. How many adults were at the zoo at first?

3 m
At a zoo, there were

Level 2

Vincent had^{7}_{10} as many stamps as Isabelle. After Vincent bought another 30 stamps, he had 15 less stamps than Isabelle. How many stamps did Vincent have at first?

2 m
Vincent had

Level 3

The amount of Isabelle's salary to Sarah's salary is 2 : 9. If Isabelle spends^{3}_{5} of her salary, she will have $902 less than Sarah. How much salary does Sarah have?

3 m
The amount of Isabelle's salary to Sarah's salary is 2 : 9. If Isabelle spends

Level 3

Hazel had $300 more than Wendy. Hazel gave^{3}_{5} of her money to Wendy. Wendy then gave 25% of her money to Hazel. In the end, Wendy had $186 more than Hazel. How much did Hazel have at first?

4 m
Hazel had $300 more than Wendy. Hazel gave

Level 3

Kate had $280 more than Natalie. Kate gave^{3}_{5} of her money to Natalie. Natalie then gave 25% of her money to Kate. In the end, Kate had $146 less than Natalie. How much did Kate have at first?

4 m
Kate had $280 more than Natalie. Kate gave