Level 3
In an office tower of 600 workers, 35% of the staff is the same as 70% of the number of visitors. How many less visitors than staff are there in the office tower?
3 m
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?
5 m
Level 2
0.7 of Ian's money is equal to 80% of Sean's money. What is the ratio of Ian's money to Sean's money?
2 m
Level 3
A crate contains some kiwis, Fuji apples and watermelons. 0.4 of the Fuji apples is equal to 80% of the kiwis. The number of watermelons is 12 of the total number of kiwis and Fuji apples. If there are 44 more watermelons than kiwis, how many fruits are there in the crate altogether?
4 m
Level 3
Three women, Mrs Zhang, Mrs Lin and Mrs Yap went on a shopping spree. 30% of Mrs Zhang's spending is equal to 15 of Mrs Lin's spending. Mrs Yap's spending is 40% more than Mrs Lin's. If Mrs Lin spends another $804, she will spend the same amount of money as Mrs Yap.
  1. Find the ratio of Mrs Zhang's spending to Mrs Lin's to Mrs Yap's.
  2. How much did Mrs Zhang spend?
4 m
Level 2
30% of Nick's money is 45% of Sean's money. What is the ratio of Nick's money to Sean's money?
2 m
Level 3
20% of Nick's savings is $120 more than 30% of Will's savings. After Nick spent 23 of his savings and Will spent 40% of his savings, Nick has $13 more than Will. How much was Nick's saving at first?
5 m
Level 2
At a concert, 27 of the parents is equal to 35 of the kids. What is the ratio of kids to parents?
2 m
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.
4 m
Level 3
23 of Eva's money was equal to 15 of Gillian's money at first. After Eva spent $41 and Gillian spent 25 of her money, Eva had 13 as much money as Gillian.
  1. How much money did Gillian have at first?
  2. How much money did Gillian have in the end?
4 m