Question 9 — IGCSE 0580 May/June 2023 Paper 23
Cambridge IGCSE Mathematics 0580, Extended tier, non-calculator. Topic: Numbers · Speed, distance, time problems. Worth 3 marks.
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Question text
9 The distance–time graph shows information about Kai’s journey from home to the office.
70
Office
60
50
40
Distance
(km)
30
20
10
Home 0
10 00 11 00 12 00 13 00 14 00
Time
(a) Calculate the average speed, in km/h, for Kai’s journey from home to the office.
........................................ km/h [2]
(b) When Kai arrives at the office, he finds his meeting is cancelled. He immediately returns home at
a constant speed of 50 km/h.
Complete the distance–time graph to show his journey home. [1]
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