A21 translate simple situations or procedures into algebraic expressions or formulae Quiz: Pearson Edexcel Maths, Unit 2

The 20 questions

1. Translating 'five more than twice a number' gives

   • 2(x + 5)
   • x + 5 + 2
   • 5x + 2
   • 2x + 5

2. After setting up an equation from a word problem, what is the next step?

   • factorise expression
   • plot graph
   • differentiate
   • solve equation

3. The area of a triangle with base b and height h is

   • A = (1/2)bh
   • A = b + h
   • A = 2bh
   • A = bh

4. A word problem involving two unknown variables typically requires what to solve?

   • single linear equation
   • iteration formula
   • quadratic formula
   • two simultaneous equations

5. The total cost of n items at £p each, plus a £3 fee, is

   • 3np
   • (n + 3)p
   • n + p + 3
   • np + 3

6. When finishing a word problem, what does interpreting the solution mean?

   • rationalising denominators
   • simplifying surds
   • contextualising the answer
   • expanding brackets

7. The perimeter of a rectangle with length l and width w is

   • P = l + w
   • P = 4l + w
   • P = 2l + 2w
   • P = lw

8. If n is an integer, the next consecutive integer after n is

   • n + 1
   • n + 2
   • n - 1
   • 2n

9. Adult tickets cost £12 and child tickets £8. Three adults and c children pay £60. Which equation models this?

   • 36 + 8 + c = 60
   • 36 + 8c = 60
   • 3 + 8c = 60
   • 12 + 8c = 60

10. A length is 3 more than twice the width. If the perimeter is 30 cm, the width is

    • 4 cm
    • 3 cm
    • 9 cm
    • 5 cm

11. Three times a number plus 7 equals four times the number minus 2. The number is

    • -9
    • 7
    • 9
    • 5

12. A triangle has base x + 2 and height x, and area 12. The equation to solve is

    • x^2 + 2x + 24 = 0
    • (x + 2)x = 12
    • x^2 + 2x - 12 = 0
    • x^2 + 2x - 24 = 0

13. Ana is 5 years older than Ben, and their ages sum to 27. Ben's age is

    • 11
    • 16
    • 22
    • 13

14. A cost is C = 15 + 4h for h hours. The number of hours for a cost of £47 is

    • 7 hours
    • 32 hours
    • 8 hours
    • 9 hours

15. Two numbers add to 10, and one is 2 more than the other. The larger number is

    • 6
    • 4
    • 8
    • 5

16. A 240 km journey takes 3 hours at a steady speed. The speed is

    • 243 km/h
    • 720 km/h
    • 60 km/h
    • 80 km/h

17. A rectangle's length is 2 cm more than its width, and its area is 35 cm^2. The width is

    • 17.5 cm
    • -7 cm
    • 5 cm
    • 7 cm

18. Three consecutive integers add to 66. The largest is

    • 23
    • 21
    • 66
    • 22

19. Sam earns £4 an hour and Jo earns £6 an hour. Sam works 3 more hours than Jo, and together they earn £72. Jo works

    • 6 hours
    • 12 hours
    • 3 hours
    • 9 hours

20. After a 20% reduction, an item costs £48. Its original price was

    • £68
    • £60
    • £38.40
    • £58

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