plumiUpper and lower bounds: OCR GCSE Maths questions
Every OCR GCSE Maths exam question on N16 Upper and lower bounds, 2017–2025, with its mark scheme and examiner’s report.
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All 15 questions on Upper and lower bounds, as a list
- June 2025, Paper 6, Q6 (4 marks): A kitchen has space for a fridge. (a) The width, w, of the space is 70 cm, correct to the nearest centimetre. Complete the error interval for the width, w. (a)
- November 2024, Paper 4, Q13 (4 marks): A water company is laying pipes to cover a distance of 37 metres, correct to the nearest metre. Each pipe has a length of 2.3 metres, correct to 1 decimal place
- June 2024, Paper 4, Q16 (5 marks): A lift can travel at a maximum speed of 9.83 m / s, correct to 3 significant figures. The lift travels a distance of 174 m, correct to the nearest metre, betwee
- November 2023, Paper 6, Q14 (4 marks): Here is a right-angled triangle. Not to scale height base 2, correct to the nearest 10cm 2. The area of the triangle is 100cm The length of the base of the tria
- June 2023, Paper 6, Q12 (5 marks): A box contains 200 matches, correct to the nearest ten matches. (a) Complete the error interval for n, the number of matches in the box. (a) n G G (b) The box i
- November 2022, Paper 6, Q16 (5 marks): A plane flies from London to Tokyo. The distance is 9600 km, correct to the nearest 100 km. The plane travels at an average speed of 820 km/h, correct to the ne
- June 2022, Paper 4, Q11 (4 marks): Jamie buys fence panels that fit tightly together. Not to scale Each panel has a length of 1.8 m, correct to 1 decimal place. Jamie measures the length of a gar
- November 2021, Paper 6, Q9 (8 marks): The width, w, of a kitchen cupboard is 60 cm, correct to the nearest centimetre. (a) Complete the error interval for the width, w. (a) w 1 G (b) Six of these ki
- November 2020, Paper 4, Q11 (7 marks): (a) The length, d, of Jamal’s car is 4.72 m, correct to 2 decimal places. Complete the error interval for the length, d. (a) d 1 G (b) Jamal travels 430 km, cor
- November 2019, Paper 6, Q12 (10 marks): (a) Arron ran a distance of 5 km at an average speed of 2.2 m / s. How long did Arron run for? Give your answer in minutes and seconds, to the nearest second. (
- June 2019, Paper 4, Q11 (4 marks): The area of a rectangle is 56 m2, correct to the nearest m2. The length of the rectangle is 9.2 m, correct to the nearest 0.1 m. Calculate the smallest possible
- November 2018, Paper 6, Q16 (3 marks): A £1 coin weighs 8.75 g, correct to the nearest 0.01 g. Mitul weighs the contents of a large bag of £1 coins. The coins weigh 2.63 kg, correct to the nearest 10
- June 2018, Paper 6, Q14 (8 marks): (a) Standard bricks have dimensions 21.5 cm by 10.3 cm by 6.5 cm, correct to 1 decimal place. A house is built using 4663 standard bricks. Joslin says Placed en
- November 2017, Paper 4, Q12 (4 marks): A log is 18 m long, correct to the nearest metre. It is to be cut into fence posts which must be 80 cm long, correct to the nearest 10 centimetres. What is the
- June 2017, Paper 6, Q11 (4 marks): Sunil makes 7.5 litres of soup, correct to the nearest 0.5 litre. He serves the soup in 300 ml portions, correct to the nearest 10 ml. 24 people order this soup
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