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A pedestrian leaves point A with a speed of v1 = 5 km/h.
After 3 hours, a cyclist follows him from the same place at a speed of v2 = 20 km/h.
But a car starts from point B, 50 km away at the same time as the cyclist.
Calculate the distance and time at which the cyclist overtook the pedestrian and the speed v the car had to travel for everyone to meet at the same time.

Correct answer:

s =  20 km
t =  1 h
v =  70 km/h

Step-by-step explanation:

s+s1=v t 20+50=v 1  v=70  v=170=70  v=70=70 km/h



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