Question

A runner burned 120 calories on a 1.6 km run. How many calories would they burn on a 5 km run

Answer 1

1) Let's first find how many calories a runner burns on 1 km: R=120/1.6= 75 (calories/km)
2) On 5 km he will burn: Calories=5*R=5*75= 375 (calories)
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375 calories he would burn on 5 km.