Cyclist started at 9:00 from point S to point T. After 10 minute, I followed him at the same speed as the second cyclist. Walker, which went from T to S, started at 9:35. After 71 minutes, he met the first cyclist, and after the next 8 minutes, the second cyclist.
The distance between the two cities is 37 km.

Determine the (same) speed of cyclists and walkers.

Correct answer:

v1 =  17.9 km/h
v2 =  4.5 km/h

Step-by-step explanation:

37=v16035+71+v26071 37=v16035+71+810+v26071+8  2220=106v1+71v2 2220=104v1+79v2  v1=17.9 km/h
v2=4.5 km/h

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