N11 Fractions in ratio problems Quiz: AQA Maths, Unit 1

The 20 questions

1. The ratio of red to blue balls is 2 : 3. What fraction of the balls are red?

   • 2/5
   • 3/5
   • 1/3
   • 2/3

2. Sam shares £40 between two people in the ratio 3 : 5. How much does the first person get?

   • £16
   • £25
   • £24
   • £15

3. A mixture uses cement to sand in the ratio 1 : 4. What fraction of the mixture is cement?

   • 1/4
   • 1/3
   • 1/5
   • 4/5

4. If 2/5 of the pupils are boys, what is the ratio of girls to boys?

   • 5 : 2
   • 3 : 5
   • 2 : 3
   • 3 : 2

5. A bag has red and blue sweets in the ratio 4 : 1. There are 60 sweets. How many are blue?

   • 48
   • 12
   • 15
   • 6

6. The ratio x : y is 5 : 3 and y = 9. What is x?

   • 5
   • 15
   • 12
   • 27

7. Paint is made from blue and white in the ratio 2 : 7. What fraction of the paint is white?

   • 2/7
   • 2/9
   • 7/2
   • 7/9

8. The ratio of boys to girls is 3 : 4. What fraction of the group are boys?

   • 3/4
   • 3/7
   • 4/7
   • 3/8

9. Orange juice and water are mixed in the ratio 1 : 4. How much orange juice is in 1.5 litres of the mixture?

   • 0.6 litres
   • 1.2 litres
   • 0.3 litres
   • 0.375 litres

10. Share 72 in the ratio 1 : 2 : 3. What is the smallest share?

    • 24
    • 6
    • 36
    • 12

11. Two parts are in the ratio 3 : 7. What fraction of the total is the bigger part?

    • 3/7
    • 7/10
    • 3/10
    • 7/3

12. A ratio of first to second part is 2 : 3. What fraction of the whole is the second part?

    • 2/5
    • 2/3
    • 3/2
    • 3/5

13. Pencils and pens are in the ratio 5 : 2. There are 35 pencils. How many pens are there?

    • 10
    • 21
    • 7
    • 14

14. The ages of two people are in the ratio 4 : 7 and their total is 44. What is the older age?

    • 28
    • 16
    • 24
    • 20

15. Cats and dogs are in the ratio 3 : 2. What fraction of the animals are dogs?

    • 3/2
    • 2/5
    • 3/5
    • 2/3

16. Juice is mixed in the ratio 3 : 5 to make 240 ml. How much is the 3-part portion?

    • 90 ml
    • 80 ml
    • 120 ml
    • 150 ml

17. A recipe uses flour and butter in the ratio 5 : 2. If there are 350 g of flour, how much butter is needed?

    • 140 g
    • 70 g
    • 250 g
    • 175 g

18. In a shape, the ratio of shaded to unshaded area is 1 : 3. What fraction of the shape is shaded?

    • 3/4
    • 1/4
    • 1/3
    • 1/2

19. Red and white paint are mixed in the ratio 1 : 3. How much red paint is needed for 2 litres of mixture?

    • 0.5 litres
    • 0.67 litres
    • 0.25 litres
    • 1 litre

20. £60 is shared in the ratio 2 : 1. How much does the first person receive?

    • £30
    • £45
    • £20
    • £40

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