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Question

if someone walks 5km in 21 minutes and then 4 km in 39 minutes then whats his average speed
11 years ago

Answers

Damon
9 kilometers in 60 minutes
= 9 kilometers/ hour
11 years ago
Ms. Sue
9 km in 60 minutes = 9 kph
11 years ago
Steve
avg speed is total distance divided by total time:

(5+4)/(21+39) km/min = 9 km/hr

That's a pretty good clip!
11 years ago

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