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4MA1/1FR Jan 2020, Question 9: Introduction to Percentages

Pearson Edexcel International GCSE Mathematics A 4MA1 · Paper 1FR (Foundation) · Calculator · 4 marks

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The question, in short

Three short number tasks: round 24.8635 to 3 significant figures, evaluate √50.41, and convert 7/8 into a percentage.

Summarised in our own words. Use the official paper for the exact wording and any diagrams.

Part (a) · 1 mark

Round 24.8635 to 3 significant figures.

  1. 1The first three significant figures of 24.8635 are 2, 4 and 8
  2. 2The next figure is 6, so round up: 24.9

Answer24.9

Part (b) · 1 mark

Work out the value of √50.41.

  1. 17.1 × 7.1 = 50.41
  2. 2So √50.41 = 7.1

Answer7.1

Part (c) · 2 marks

Express 7/8 as a percentage.

  1. 17 ÷ 8 = 0.875
  2. 20.875 × 100 = 87.5%

Answer87.5

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