Runners 4857

Two runners run on a 3200m oval track, one running at 12 km/h and the other at 8 km/h. How long does it take for the first runner to finish the second one?

Correct answer:

t =  0.8 h

Step-by-step explanation:

s=3200/1000=516=3.2 v1=12 v2=8 d=v1v2=128=4 t=s/d=3.2/4=54=0.8=0.8 h t2=60 t=60 0.8=48

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