SOLUTION: A plane takes off form the Indianapolis airport flying east at 400 mph. Another plane takes off an hour later flying the same direction at 480 mph. Assuming they are both still i

Question 1165254: A plane takes off form the Indianapolis airport flying east at 400 mph. Another plane takes off an hour later flying the same direction at 480 mph. Assuming they are both still in the air how long will it take the second plane to catch the first.
Answer by josgarithmetic(39625) (Show Source): You can put this solution on YOUR website!
Approach each other at 80 miles per hour

When second plane starts, distance between the two planes is 400*1=400 miles.

x, how long to catchup

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