Math 8 · Unit 12: Ratio and proportion · Cambridge Lower Secondary Maths Stage 8

Questions

1. 1. Share $120 in the ratio 3 : 5. Larger share?

   • $75
   • $40
   • $45
   • $72
   Check

2. 2. Share 90 in the ratio 2 : 7. Smaller share?

   • 70
   • 20
   • 18
   • 45
   Check

3. 3. Share 60 in the ratio 1 : 2 : 3. Largest share?

   • 10
   • 36
   • 20
   • 30
   Check

4. 4. Ana and Ben share money in the ratio 4 : 3. Ana gets $28. How much does Ben get?

   • $21
   • $12
   • $28
   • $49
   Check

5. 5. Ana and Ben share in the ratio 4 : 3. Ana gets $28. Total?

   • $56
   • $35
   • $21
   • $49
   Check

6. 6. Paint: blue : yellow = 5 : 3. Total 16 litres. How much blue?

   • 5 litres
   • 8 litres
   • 6 litres
   • 10 litres
   Check

7. 7. Angles of a triangle are in the ratio 1 : 2 : 3. Largest angle?

   • 30°
   • 120°
   • 90°
   • 60°
   Check

8. 8. Share 1 kg in the ratio 3 : 2. Larger part?

   • 500 g
   • 300 g
   • 600 g
   • 400 g
   Check

9. 9. Boys : girls = 5 : 4. There are 5 more boys than girls. How many pupils?

   • 9
   • 25
   • 40
   • 45
   Check

10. 10. Share $50 between 3 people in the ratio 2 : 3 : 5. Smallest share?

    • $20
    • $5
    • $10
    • $15
    Check

11. 11. Sand : cement = 4 : 1. 30 kg mix. How much cement?

    • 24 kg
    • 7.5 kg
    • 5 kg
    • 6 kg
    Check

12. 12. Red : blue = 2 : 3. There are 18 blue. How many red?

    • 9
    • 27
    • 12
    • 6
    Check

13. 13. A $240 prize is shared 7 : 5. Difference between shares?

    • $100
    • $40
    • $140
    • $20
    Check

14. 14. Share 35 in the ratio 3 : 4. Shares?

    • 10 and 25
    • 15 and 20
    • 3 and 4
    • 14 and 21
    Check

15. 15. A ratio 1 : 1 means …

    • one gets everything
    • equal shares
    • double shares
    • no sharing
    Check