Question 3
Michelle decide to take part in the sponsored walk with her daughter.
The
graph below shows Michelle's progress
during the sponsored
walk.
Geborgde stapwedloop/ Sponsored walk
Tyd/Time (in min.)
200
180
160
140
120
100
80
60
A
40
20
0
4
6
8. 10
Afstand/ Distance (in km)
12
14
16
18 20
20
Use the graph to answer the following questions.
3.1 What was the total distance of the sponsored walk?
3.2 How many minutes did it take Michelle to:
(2)
(6)
3.2.1
reach point A?
3.2.2
complete 10 km?
3.2.3 complete 15 km?
3.3 Calculate the time (in hours) that Michelle took to
(2)
3.4
complete the race. Round off to one decimal place.
Determine Michelle's average walking speed in km/min.
Use the formula:
(3)
distance
Average speed = time
3.5
Michelle completed the walk in 200 minutes. The winner
completed the walk in 80% of Michelle's time. Calculate
the time taken by the winner to complete the walk.
(2)
[15]
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