How far does the dog travel in 1 hour?

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The Puzzle: A girl, a boy, and a dog start walking down a road.

They start at the same time, from the same point, in the same direction.

The boy walks at 5 km/h, the girl at 6 km/h. 

The dog runs from boy to girl and back again with a constant speed of 10 km/h. The dog does not slow down on the turn.
How far does the dog travel in 1 hour?

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  • 1 Answer(s)

    10km
    Speed us 10km/h

    anikam Expert Answered on 24th August 2015.
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