Question

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(c) One lorry travels from your town to another town. The lorry reaches a top speed of 90 km/h, but its average speed between the towns is only 66 km/h.

(ii) The journey between the towns takes 20 minutes. Calculate the distance between the towns.
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Answer 1

Average speed = (distance) / (time)

66 km/hour = (distance) / (1/3 hour)

Distance = (66 km/hr) • (1/3 hr)

Distance = 22 km