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4MA1/1FR Jun 2025, Question 22: Unit Conversions

Pearson Edexcel International GCSE Mathematics A 4MA1 · Paper 1FR (Foundation) · Calculator · 5 marks

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The question, in short

Bus covers 1262 km in 17 1/2 hours; find average speed in km/h to nearest whole number, and convert 50x m/s into km/h.

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

Part (a) · 2 marks

Calculate the bus's average speed in km/h from 1262 km and 17 1/2 hours, rounded to the nearest whole number.

  1. 117 1/2 hours = 17.5 hours
  2. 2Speed = 1262 ÷ 17.5
  3. 3= 72.11…
  4. 4= 72 km/h

Answer72

Part (b) · 3 marks

Convert a speed of 50x metres per second into kilometres per hour.

  1. 1In 1 hour: 50x × 60 × 60 = 180 000x metres
  2. 2180 000x m ÷ 1000 = 180x km
  3. 3Speed = 180x km/h

Answer180x

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