Two railroad station (A and B) have two sets of tracks betweenthem. First Train(

Question

Two railroad station (A and B) have two sets of tracks betweenthem. First Train(T1) leaves station A at a speed of 50 km/hr boundfor station B. At the same time another Train (T2) leaves station Aat a speed of 80 km/hr bound for station B. T2 arrives to station B3 hours earlier than T1. (a) What is the distance between station Aand Station B? (in km) (b) How long did it take for T2 to reachstation B?(in hr) ANY HELP PLEASE!!!! I NEED THIS ASAP!!!!! Two railroad station (A and B) have two sets of tracks betweenthem. First Train(T1) leaves station A at a speed of 50 km/hr boundfor station B. At the same time another Train (T2) leaves station Aat a speed of 80 km/hr bound for station B. T2 arrives to station B3 hours earlier than T1. (a) What is the distance between station Aand Station B? (in km) (b) How long did it take for T2 to reachstation B?(in hr) ANY HELP PLEASE!!!! I NEED THIS ASAP!!!!!

Explanation / Answer

id d is the distance in km, T1 takes time d/50 hr. T2 takes time d/80 hr. d/50-d/80 = 3 d = 400 km. time taken by T2 is 400/80 = 5 hrs.

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