0580/23 Oct/Nov 2021, Question 8: Speed, Distance and Time
Cambridge IGCSE Mathematics 0580 · Paper 23 (Extended) · Calculator · 3 marks
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The question, in short
Work out Beatrice's average speed over a journey of 1 km at 4 km/h followed by 2 km at 4.5 km/h.
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Solution · 3 marks
- 1Time for first part = 1/4 = 0.25 h
- 2Time for second part = 2/4.5 = 0.444… h
- 3Total time = 0.6944… h
- 4Average speed = 3 ÷ 0.6944…
- 5= 4.32 km/h
Answer4.32
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Also searched as: 0580/23/O/N/21 · 0580_w21_qp_23 · 0580 w21 23 · question 8.
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