Karel Ondra pursuit

Carl went for a walk at a speed of 5 km/h. After 3 hours, Andrew rode after him with an important message at a speed of 20 km/h. How many minutes did it take Andrew to catch up with Carl?

Final Answer:

t =  60 min

Step-by-step explanation:

v1=5 km/h v2=20 km/h  O=3 h  s1=s2  v1 (O+T)=v2 T 5 (3+T)=20 T  15T=15  T=1515=1  T=1  t=T min=T 60  min=1 60  min=60 min=60 min



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