There are two trains, one is 140 meters long and travels 24 meters per second, and the other is 230 meters long and travels 13 meters per second. Now the two trains are moving towards each other. Find out how many seconds it will take for the two trains to meet and leave when they make a mistake ?
有两列火车，一列长140米，每秒行24米，另一列长230米，每秒行13米，现在两车相向而行，求这两列火车错车时从相遇到离开需几秒钟？
<gadget id="calculator">140 + 230</gadget>
<output>370</output>

<gadget id="calculator">24 + 13</gadget>
<output>37</output>

<gadget id="calculator">370 / 37</gadget>
<output>10</output>

<result>10</result>