Cars A and B start from A and B at the same time and meet each other after 6 hours. Car A is faster than car B by 5 kilometers per hour. The speed ratio of the two cars is 7:8. Find the distance between A and B in kilometers ?
甲、乙两车从A、B两地同时出发经过6小时相遇，甲车每小时比乙车快5千米，两车的速度比是7：8，求A、B两地相距多少千米？
<gadget id="calculator">8 - 7</gadget>
<output>1</output>

<gadget id="calculator">5 / 1</gadget>
<output>5</output>

<gadget id="calculator">5 * 7</gadget>
<output>35</output>

<gadget id="calculator">5 * 8</gadget>
<output>40</output>

<gadget id="calculator">35 + 40</gadget>
<output>75</output>

<gadget id="calculator">75 * 6</gadget>
<output>450</output>

<result>450</result>