SOLUTION: A dog ran at 30 km/hr for 40 minutes and then returned to the starting point at 20 km/hr.find it's average speed
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Question 1014218: A dog ran at 30 km/hr for 40 minutes and then returned to the starting point at 20 km/hr.find it's average speed
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Convert minutes to hrs
hrs
The one-way distance is:
km
and, for the return to start:
hr
-------------
Average speed is always
[ total distance ] / [ total time ]
The average speed is 24 km/hr
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