At noon a train leaves washington, d. c., headed for miami, florida, a distance of 1100 miles. the train travels at a speed of 60 mph. at 1 pm a second train leaves miami headed for washington d. c., traveling at 70 mph. at what time will the two trains pass each other?

Let t hours be the number of hours needed for the second train to catch up the first one.

Then the first train is  on the way (t+1) hours.

1. First train travels at a speed of 60 mph (t+1) hours and passes

2. Second train travels at a speed of 70 mph t hours and passes

Since two trains will meet, then

Then they will meet at 7:00 p.m.

7:00 p.m.

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