Metric of cities

**Connected** · Apr 3rd 2011, 03:57 PM

Let $X$ be the set of cities, $a,b,c.$ Indicate which metric on $X$ must consider a traveller, if he moves in: a car, a plane, a train and a bike.

I don't get well the problem. How to proceed?

**Drexel28** · Apr 3rd 2011, 05:15 PM

Originally Posted by Connected

Let $X$ be the set of cities, $a,b,c.$ Indicate which metric on $X$ must consider a traveller, if he moves in: a car, a plane, a train and a bike.

I don't get well the problem. How to proceed?

This makes zero, absolutely no sense haha. Did you copy it wrong?

**Connected** · Apr 3rd 2011, 05:23 PM

No, I copied it well.

Haha, for me doesn't make any sense too!

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