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A man covers a total distance of 100 km on bicycle. For the first 2 hours, the speed was 20 km/hr and for the rest of the journey, it came down to 10 km/hr. The average speed will be

12.5 km/hr
13 km/hr
15.5 km/hr
20 km/hr

Correct Answer: 12.5 km/hr

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