Increase 5613

The tourist goes at an average speed of 3.5 km/h. The last train takes him 50 minutes. How much does he have to increase his speed if he still has 5 km to go to the station?

Correct answer:

v =  2.5 km/h

Step-by-step explanation:

v1=3.5 km/h t=50/60=650.8333 h s=5 km v2=s/t=5/0.8333=6 km/h v=v2v1=63.5=2.5 km/h

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