SOLUTION: A train leaves station M and travels west at 35 km/hr. One hour later, a faster train leaves station M and also travels west on a parallel track at 40 km/hr. How far from station M

Question 485928: A train leaves station M and travels west at 35 km/hr. One hour later, a faster train leaves station M and also travels west on a parallel track at 40 km/hr. How far from station M will the faster train catch the slower one?
Answer by mananth(16946) (Show Source): You can put this solution on YOUR website!
before second train leaves station M
first train is already 35 km ahead.
Because in 1 hour it travels 35 km.
catchup distance = 35
catchup speed = 40 -35 = 5 km/h
t= distance /speed
t = 35/5
t = 7 hours
it takes 7 hours for second train to catch up.
In 7 hours it travels 7 * 48 = 280 km
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