Cars A and B start from A and B at the same time and run towards each other, and meet each other 5 hours; if car B starts 1 hour earlier, it will meet car A at a distance less than 13 kilometers from the midpoint; if car A starts 1 hour earlier When starting out, it will meet car B after passing the midpoint of 37 kilometers, and find the speed difference between car A and car B.
甲、乙两车从A、B两地同时出发相向而行，5小时相遇；如果乙车提前l小时出发，则在不到中点13千米处与甲车相遇；如果甲车提前1小时出发，则过中点37千米后与乙车相遇，求甲车与乙车的速度差．
<gadget id="calculator">37 * 2</gadget>
<output>74</output>

<gadget id="calculator">13 * 2</gadget>
<output>26</output>

<gadget id="calculator">74 + 26</gadget>
<output>100</output>

<gadget id="calculator">5 * 2</gadget>
<output>10</output>

<gadget id="calculator">100 / 10</gadget>
<output>10</output>

<result>10</result>