SOLUTION: hello can someone solve this word problem for me please thank you a train leaves Little Rock and travels north at 55 kilometers per hour. Another train leaves at the same tim

Question 883452: hello can someone solve this word problem for me please thank you

a train leaves Little Rock and travels north at 55 kilometers per hour. Another train leaves at the same time and travels south at 80 kilometers per hour. How long will it take before they are 405 kilometers apart?

Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
a train leaves Little Rock and travels north at 55 kilometers per hour. Another train leaves at the same time and travels south at 80 kilometers per hour. How long will it take before they are 405 kilometers apart?
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They are separating at the rate of 55 + 80 = 135 km/h
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Equation:
time = distance/rate
time = 405/135 = 3 hrs
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Cheers,
Stan H.
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