Pedestrian 7570

A pedestrian left town S at a speed of 4.2 km/h. After 1 hour and 10 minutes, a cyclist left the same city and in the same direction at a speed of 18 km/h. After how many minutes does the cyclist catch up with the pedestrian, and how far from town S?

Correct answer:

m =  21.3043 min
s =  6.3913 km

Step-by-step explanation:

4.2 (t+(1+10/60))=18 t  828t=294  t=828294=0.35507246  t=138490.355072  m=60 t=60 0.3551=21.3043 min
s=18 t=18 0.3551=6.3913 km



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