N16 apply and interpret limits of accuracy, including upper and lower bounds Quiz: Pearson Edexcel Maths, Unit 1

The 20 questions

1. What is the upper bound of 6 kg given to the nearest kg?

   • 7 kg
   • 6.5 kg
   • 6.9 kg
   • 6.1 kg

2. A length is 8 cm to the nearest cm. What is its lower bound?

   • 7.9 cm
   • 8.5 cm
   • 7.5 cm
   • 7 cm

3. A value is given as 3.2 to 1 decimal place. What is the maximum error from the given value?

   • 0.05
   • 0.1
   • 0.5
   • 0.005

4. Which inequality describes x if x is 50 to the nearest 10?

   • 45 ≤ x < 55
   • 40 < x ≤ 50
   • 50 ≤ x < 60
   • 45 < x < 55

5. A mass of 240 g is given to the nearest 10 g. What is the lower bound of the total of 4 such masses?

   • 940 g
   • 920 g
   • 1000 g
   • 960 g

6. A side of a square is 5.4 m to 1 decimal place. What is the upper bound of the perimeter?

   • 21.6 m
   • 22 m
   • 21.4 m
   • 21.8 m

7. A speed of 60 mph is given to the nearest 10 mph. What is the lower bound of the distance travelled in 3 hours?

   • 180 miles
   • 165 miles
   • 150 miles
   • 175 miles

8. A rectangle is 6 cm by 4 cm, each measured to the nearest cm. What is the upper bound of its area?

   • 29.25 cm²
   • 28 cm²
   • 27.5 cm²
   • 24 cm²

9. A mass is 50 g to the nearest gram and a volume is 25 cm³ to the nearest cm³. What is the lower bound of the density, to 2 decimal places?

   • 1.94 g/cm³
   • 1.96 g/cm³
   • 2.00 g/cm³
   • 1.92 g/cm³

10. A time is 3.6 s to 1 decimal place. What is its lower bound?

    • 3.55
    • 3.5
    • 3.59
    • 3.6

11. A number x is 12 to the nearest integer. What is the lower bound of 1/x to 2 decimal places?

    • 0.083
    • 0.0833
    • 0.0792
    • 0.08

12. A cube has edges of 2 cm, each measured to the nearest cm. What is the upper bound of its volume to 3 decimal places?

    • 8 cm³
    • 12.5 cm³
    • 14.5 cm³
    • 15.625 cm³

13. a = 7 and b = 3 are each given to the nearest integer. What is the upper bound of a ÷ b?

    • 3
    • 7.5
    • 3.5
    • 2.8

14. a = 12.4 and b = 5.3, each given to 1 decimal place. What is the lower bound of a − b?

    • 7.05
    • 7.1
    • 7.0
    • 6.95

15. A value is 4.0 to 1 decimal place. What is the upper bound of 1/x to 3 decimal places?

    • 0.253
    • 0.2
    • 0.25
    • 0.26

16. Two lengths are 10 cm and 4 cm, each to the nearest cm. What is the largest possible difference?

    • 7
    • 6.5
    • 6.9
    • 6

17. Speed is 20 m/s and time is 4 s, each to the nearest whole unit. What is the upper bound of the distance d = s × t?

    • 90 m
    • 92.25 m
    • 80 m
    • 84 m

18. Which error interval matches a value written as 0.7 correct to 1 significant figure?

    • 0.65 ≤ x < 0.75
    • 0.695 ≤ x < 0.705
    • 0.7 ≤ x < 0.8
    • 0.6 ≤ x < 0.7

19. A value is 2700 correct to 2 significant figures. What is its lower bound?

    • 2600
    • 2695
    • 2675
    • 2650

20. a = 3 (nearest integer) and b = 0.4 (1 decimal place). What is the lower bound of ab?

    • 1.2
    • 0.75
    • 0.8
    • 0.875

Related quizzes

• order positive and negative integers, decimals and fractions Quiz · N1 · 20 questions
• apply the four operations, including formal written methods, to integers, decimals and... Quiz · N2 · 20 questions
• recognise and use relationships between operations, including inverse operations (e.g.... Quiz · N3 · 20 questions
• use the concepts and vocabulary of prime numbers, factors (divisors), multiples,... Quiz · N4 · 20 questions
• apply systematic listing strategies, including use of the product rule for counting... Quiz · N5 · 20 questions
• use positive integer powers and associated real roots (square, cube and higher),... Quiz · N6 · 20 questions
• calculate with roots, and with integer and fractional indices Quiz · N7 · 20 questions
• calculate exactly with fractions, surds and multiples of π Quiz · N8 · 20 questions
• calculate with and interpret standard form A × 10 , where 1 ≤ A < 10 and n is an integer Quiz · N9 · 20 questions
• work interchangeably with terminating decimals and their corresponding fractions (such... Quiz · N10 · 20 questions