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You can't WALK 5k in 30 minutes.

Speed = Distance / Time

Speed = 5 / 0.5 (30 mins expressed as an hour)

So Speed = 10km/h

I don't know anyone who can walk at 10 km/h

But you can certainly run 5 k in 30 minutes. How many calories that would use up depends on a lot of things, your weight, level of exertion ASO. I'd probably use up something like 300 cal for a 30 minute run at that pace.
The amount of calories you burn in a 5k depends on your speed and your weight. If you run in the 5k you will burn more than if you walk in the 5k.

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9y ago

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