4MA1/2FR Jun 2020, Question 18: Upper and Lower Bounds
Pearson Edexcel International GCSE Mathematics A 4MA1 · Paper 2FR (Foundation) · Calculator · 2 marks
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The question, in short
A book's length is given as 33.8 cm, rounded to one decimal place; state the lower and upper bounds of this length.
Summarised in our own words. Use the official paper for the exact wording and any diagrams.
Part (a) · 1 mark
Give the smallest possible length consistent with 33.8 cm rounded to one decimal place.
- 133.8 − 0.05 = 33.75
Answer33.75
Part (b) · 1 mark
Give the largest possible length consistent with 33.8 cm rounded to one decimal place.
- 133.8 + 0.05 = 33.85
Answer33.85
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