4MA1/1F Jan 2022, Question 8: Unit Conversions
Pearson Edexcel International GCSE Mathematics A 4MA1 · Paper 1F (Foundation) · Calculator · 3 marks
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The question, in short
Mairi cuts as many 35 centimetre lengths as possible from a 2 metre string; work out the leftover length in centimetres.
Summarised in our own words. Use the official paper for the exact wording and any diagrams.
Solution · 3 marks
- 12 m = 2 × 100 = 200 cm
- 2200 ÷ 35 = 5.714..., so she can cut 5 lengths of 35 cm
- 35 × 35 = 175 cm of string is used
- 4200 − 175 = 25
- 5The length of string left is 25 cm
Answer25
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