A cattle train left Washington and traveled
toward Johannesburg. Six hours later a
passenger train left traveling at 70 km/h in
an effort to catch up to the cattle train. After traveling for four hours the
passenger train finally caught up. What
was the cattle train's average speed?
A) 28 km/h B) 25 km/h
C) 35 km/h D) 45 km/h

Answer :

B is the answer hope this helps

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