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Physics, 21.12.2020 01:40 Killakyle4744

A group of bike riders took a 4 hour trip. During the first 3 hours, they traveled a total of 50 km, but during the last hour they traveled only 10 km. What was the group's average speed for the entire trip?
A. 60 km/hr
C 30 km hr
B. 40 km hr
D. 15 km hr

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