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Q17: Question – Paper 3 – June 2017
Q17: Question – Paper 3 – June 2017
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Question
17)
A train travelled along a track in 110 minutes, correct to the nearest 5 minutes.
Jake finds out that the track is 270 km long.
He assumes that the track has been measured correct to the nearest 10 km.
a) Could the average speed of the train have been greater than 160 km/h?
You must show how you get your answer.
A train travelled along a track in 110 minutes, correct to the nearest 5 minutes.
Jake finds out that the track is 270 km long.
He assumes that the track has been measured correct to the nearest 10 km.
a) Could the average speed of the train have been greater than 160 km/h?
You must show how you get your answer.
[4 marks]
Jake’s assumption was wrong.
The track was measured correct to the nearest 5 km.
b) Explain how this could affect your decision in part (a).
[1 mark]