Question 1207010
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When the second train overtakes the first, the first train has been traveling for 6 hours and the second train for 2 hours.<br>
The ratio of times is 3:1, and the distances are the same, so the ratio of speeds is 3:1.<br>
Let x = speed of first train
Then 3x = speed of second train<br>
The difference in their speeds is 112mph:<br>
3x-x=112
2x=112
x=56<br>
ANSWERS: The speeds of the two trains are<br>
first train: x = 56mph
second train: 3x - 168mph<br>