Atarin leaves little rock, arkansas and travels north at 85 kilometers per hour. another train leaves at the same time and travels south at 70 kilometers per hour. how long will it take before they are 310 kilometers apart

Since the trains are traveling in opposite directions, add their two speeds together to find out how far apart they travel from each other per hour.



The trains travel 155 kilometers away from each other every hour.

Divide 310 by this number to find out how long it will take for them to be 310 kilometers apart from each other.



It will take 2 hours for the trains to be 310 kilometers away from each other.

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