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Mathematics, 18.09.2019 03:50 marchellepenuliar

In the 2004 summer olympics, marie helene premont won the silver medal in the women's mountain bike race. she completed the 31.3 km course in 1 h 57 min 50 s.
a) determine her average speed in kilometres per hour.
b) at this rate, how long would she take to complete a course of 45 km? express your answer in hours, minutes, and seconds.
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