Two cars leave from places A and B opposite each other at the same time. It is known that car A travels 70 kilometers per hour, and car B's speed per hour is (4/5) that of car A, and they meet after 5 hours. How many kilometers are there between A and B?
两辆汽车分别从甲、乙两地同时相对开出．已知甲车每小时行70千米，乙车每小时的速度是甲车的(4/5)，经过5小时相遇．甲、乙两地相距多少千米？
<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">70 * (4/5)</gadget>
<output>56</output>

<gadget id="calculator">70 + 56</gadget>
<output>126</output>

<gadget id="calculator">126 * 5</gadget>
<output>630</output>

<result>630</result>