SOLUTION: Train Travel. A train leaves Barstow traveling east at 35km/h. One hour later, a faster train leaves Barstow, also traveling east on a parallel track at 40km/h. How far from Barsto

Question 200623: Train Travel. A train leaves Barstow traveling east at 35km/h. One hour later, a faster train leaves Barstow, also traveling east on a parallel track at 40km/h. How far from Barstow will the faster train catch up with the slower one?

Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
A train leaves Barstow traveling east at 35km/h. One hour later, a faster train leaves Barstow, also traveling east on a parallel track at 40km/h. How far from Barstow will the faster train catch up with the slower one?
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The 1st train is 35 km away when the 2nd train leaves.
The 2nd train gains on the slower train at 5 kph.
35/5 = 7 hours to overtake it.
In 7 hours the 2nd train will be 40*7 = 280 km from Barstow.
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As a check, the slower train will be 35*8 = 280 km from Barstow also.
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