R9 define percentage as ‘number of parts per hundred’ Quiz: Pearson Edexcel Maths, Unit 3

The 20 questions

1. What does the literal definition of percentage mean in terms of parts?

   • parts per thousand
   • parts per whole
   • parts per hundred
   • parts per ten

2. 50% written as a decimal is

   • 0.005
   • 0.5
   • 50
   • 5.0

3. 25% written as a fraction in lowest terms is

   • 1/5
   • 25/10
   • 1/4
   • 1/25

4. The multiplier for a 20% increase is

   • 0.8
   • 1.2
   • 0.2
   • 20

5. The multiplier for a 15% decrease is

   • 0.85
   • 0.015
   • 1.15
   • 1.5

6. 150% written as a decimal is

   • 15
   • 1.05
   • 1.5
   • 0.15

7. To find a percentage change, divide the change by

   • the original value
   • the new value
   • the percentage
   • 100

8. What does a calculated percentage value greater than 100% indicate about a quantity?

   • equals zero
   • is negative
   • less than original
   • exceeds original

9. 20% of 80 is

   • 20
   • 160
   • 16
   • 4

10. A price of £40 increases by 15%. The new price is

    • £6
    • £44
    • £55
    • £46

11. £250 decreases by 12%. The new value is

    • £30
    • £220
    • £212.50
    • £238

12. 18 as a percentage of 60 is

    • 30%
    • 33.3%
    • 3%
    • 18%

13. After a 20% increase, a price is £72. The original price was

    • £52
    • £14.40
    • £60
    • £57.60

14. Simple interest on £500 at 4% per year for 3 years is

    • £120
    • £600
    • £20
    • £60

15. A value changes from 40 to 50. The percentage change is

    • 25% increase
    • 10% increase
    • 20% increase
    • 80% increase

16. A 30% decrease followed by a 30% increase gives

    • a 9% increase
    • a 4% decrease
    • a 9% decrease
    • no change

17. £1000 invested at 5% compound interest for 2 years is worth

    • £1110
    • £1050
    • £1100
    • £1102.50

18. 200 as a percentage of 80 is

    • 125%
    • 250%
    • 40%
    • 200%

19. A value rises from 80 to 92. The percentage increase is

    • 15%
    • 12%
    • 13%
    • 18%

20. A population of 2000 falls by 10% each year for 2 years. The population is

    • 1600
    • 1620
    • 1800
    • 1640

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