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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(Scroll down if you really want
to see the Solution ...)
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.
.
.
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Where the boy and girl are has no effect on answering this puzzle.
But if you asked WHERE the dog is after 1 hour … that would be a very hard question to answer.
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?
.
.
.
.
(Scroll down if you really want
to see the Solution ...)
.
.
.
.
.
.
The Solution . . .
10km. Because the dog's speed is 10 km/h.Where the boy and girl are has no effect on answering this puzzle.
But if you asked WHERE the dog is after 1 hour … that would be a very hard question to answer.
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