Kilometer 8263

A train travels from station A to station B at a speed of 90 km/h. Another train travels from station B to station A at a speed of 45 km/h. The distance between the stations is 60 km. They leave at the same time. How long will they meet and at which kilometer?

Correct answer:

t =  0.4444 h
s1 =  40 km

Step-by-step explanation:

v1=90 km/h v2=45 km/h  v=v1+v2=90+45=135 km/h s=60 km  t=s/v=60/135=0.4444 h
s1=v1 t=90 0.4444=40 km

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