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11 Plus (11+) Maths Practice Test: Ratio (Medium)
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A ratio is a way of showing proportions of amounts.

11 Plus (11+) Maths Practice Test: Ratio (Medium)
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25 Questions

1. Each of the following ratios show the ratio of girls to boys in three classes. If each class has the same number of pupils, which of the classes has the greatest ratio of girls to boys: 16:20, 8:10, 1:1.25?
2. How else can the ratio 9:24 be written?
3. The ratio of green bottles to white bottles is 3:4. What fraction of the bottles is white?
4. Melanie has 18 red tops. How many blue tops does she have if the ratio of red tops to blue tops is 6:5?
5. How else can the ratio 1.5:8 be written?
6. 16⁄24 of the patients at a vet’s are cats and the rest are dogs. What is the simplest way of representing this as a ratio of dogs to cats?
7. The ratio of bean cans to soup cans in a shop is 2:7. What fraction of the cans contain soup?
8. The ratio of bananas to apples on a fruit stall is 13:9. If there are 45 apples on the stall, how many bananas are there?
9. Which of the following is not a way of expressing the ratio 2:7?
10. If the ratio of wind instruments to string instruments in a band is 7:8, which of the following statements is correct?
11. Which of the following is not a way of expressing the ratio 5:6?
12. If the ratio of swimmers to non-swimmers is 9:2, which of the following statements is correct?
13. How else can the ratio 1.75:2 be written?
14. 4⁄7 of the children in a class are girls. What is the ratio of girls to boys in the class?
15. The ratio of small houses to big houses is 4:7. Which of the following would not be acceptable on the basis of this ratio?
16. One hundred paintings have to be selected for an art exhibition. If the ratio of amateur paintings to professional paintings has to be 2:3, how many amateur paintings and professional paintings have to be selected?
17. How else can the ratio 8:56 be written?
18. The ratio of cheese sandwiches to ham sandwiches is 7:5. If there are 36 sandwiches in all, how many ham sandwiches are there?
19. How else can the ratio 1.25:4 be written?
20. The ratio of red roses to white roses is 7:9. What fraction of the roses are white?
21. 2⁄5 of the dogs are Labradors and 3⁄5 are Alsatians. What is this fact expressed as the ratio of Alsatians to Labradors?
22. 63 meals are to be served at a wedding party. If the ratio of vegetarian meals to non-vegetarian meals is 2:5, how many vegetarian meals will be served?
23. Seventy photographs are to be displayed in a gallery. If the ratio of portrait pictures to landscape pictures has to be 3:4, how many portrait pictures and landscape pictures have to be selected?
24. Farmer Bull has 20 cows. How many sheep does Farmer Bull have if the ratio of cows to sheep is 5:6?
25. Peter has 20 blue pens. How many red pens must he buy if the ratio of blue to red pens has to be 2:3?

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