SOLUTION: A train leaves Little Rock and travels north at 70 kilometers per hour. Another train leaves at the same time and travels south at 90 kilometers per hour. How long will it take
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Question 412917: A train leaves Little Rock and travels north at 70 kilometers per hour. Another train leaves at the same time and travels south at 90 kilometers per hour. How long will it take before they are 480 kilometers apart?
Answer by mananth(16946) (Show Source): You can put this solution on YOUR website!
Train A 70 km/h
Train B 90 km/h
..
Since they are moving away from each other add the speeds
combined speed = 160 km/h
..
Distance = 480 km
time = 480/160
time = 3 hours
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