plumiUpper and lower bounds: Edexcel GCSE Maths questions
Every Edexcel 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 3H, Q19 (3 marks): There are some sheets of paper in a pile. The height of the pile is 10.4 cm, correct to the nearest mm. The thickness of each sheet of paper is 0.17 mm, correct
- November 2024, Paper 2H, Q19 (5 marks): T = a c − w = 435 correct to the nearest 5 a = 9.8 correct to 2 significant figures. c = 2.5 correct to 2 significant figures. By considering bounds, calculate
- June 2024, Paper 3H, Q19 (3 marks): R = Q 8 correct to 3 significant figures. P = 5.88 × 10 5 correct to 2 significant figures. Q = 3.6 × 10 Work out the lower bound for R. Give your answer as an
- November 2023, Paper 3H, Q22 (4 marks): Ebony makes some bracelets to sell. The materials to make all the bracelets cost £190, correct to the nearest £5 Ebony sells all the bracelets for a total of £8
- June 2023, Paper 2H, Q19 (3 marks): ABC is a right-angled triangle. A 12.6 cm 9.3 cm x B C AB = 9.3 cm correct to the nearest mm. AC = 12.6 cm correct to the nearest mm. Calculate the lower bound
- November 2022, Paper 2H, Q23 (5 marks): A race is measured to have a distance of 10.6 km, correct to the nearest 0.1 km. Sam runs the race in a time of 31 minutes 48 seconds, correct to the nearest se
- June 2022, Paper 3H, Q16 (3 marks): p = f e = 6.8 correct to 1 decimal place. f = 0.05 correct to 1 significant figure. Work out the upper bound for the value of p. Give your answer correct to 3 s
- November 2021, Paper 2H, Q21 (4 marks): The time period, T seconds, of a simple pendulum of length l cm is given by the formula l T = 2π g Katie uses a simple pendulum in an experiment to find an esti
- November 2020, Paper 3H, Q18 (4 marks): The diagram shows a cube. A B D C F G E H AH = 11.3 cm correct to the nearest mm. Calculate the lower bound for the length of an edge of the cube. You must show
- November 2019, Paper 2H, Q20 (4 marks): d = c3 c = 10.9 correct to 3 significant figures. By considering bounds, work out the value of d to a suitable degree of accuracy. Give a reason for your answer
- June 2019, Paper 3H, Q19 (5 marks): D = 2 a u 26.2 correct to 3 significant figures a 4.3 correct to 2 significant figures (a) Calculate the upper bound for the value of D. Give your answer correc
- November 2018, Paper 3H, Q18 (5 marks): A high speed train travels a distance of 487 km in 3 hours. The distance is measured correct to the nearest kilometre. The time is measured correct to the neare
- June 2018, Paper 2H, Q21 (5 marks): Jackson is trying to find the density, in g/cm3, of a block of wood. The block of wood is in the shape of a cuboid. He measures the length as 13.2 cm, correct t
- November 2017, Paper 3H, Q16 (3 marks): The petrol consumption of a car, in litres per 100 kilometres, is given by the formula Petrol consumption = 100 × Number of litres of petrol used Number of kilo
- June 2017, Paper 3H, Q17 (5 marks): A train travelled along a track in 110 minutes, correct to the nearest 5 minutes. Jake finds out that the track is 270 km long. He assumes that the track has be
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