4024/12 May/Jun 2020, Question 10: Speed, Distance and Time
Cambridge O Level Mathematics 4024 · Paper 12 (Non-calculator) · Non-calculator · 4 marks
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The question, in short
Two time and speed problems: find cycling time in hours and minutes after subtracting rests, and find Sonia's arrival time from distance and average speed.
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Part (a) · 1 mark
Work out how many hours and minutes Bilal spends actually cycling between 3 pm and 5.38 pm, allowing for 25 minutes of rest.
- 13 pm to 5.38 pm = 2 hours 38 minutes
- 22 h 38 min − 25 min = 2 hours 13 minutes
Answer2 hours 13 minutes
Part (b) · 3 marks
Work out when Sonia arrives after walking 12 km at 5 km/h, leaving home at 10 25.
- 1Time = 12 ÷ 5 = 2.4 hours
- 20.4 hours = 0.4 × 60 = 24 minutes, so 2 h 24 min
- 310 25 + 2 h 24 min = 12 49
Answer12 49
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Also searched as: 4024/12/M/J/20 · 4024_s20_qp_12 · 4024 s20 12 · question 10.
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