The distance between AB and AB is 960 kilometers, and two vehicles A and B drive from opposite places at the same time. Car A travels 63 kilometers per hour, and car B travels 57 kilometers per hour. How many hours later will the two cars meet?
AB两地相距960千米，甲乙两车同时从两地相对开出．甲车每小时行63千米，乙车每小时行57千米．几小时后两车相遇？
<gadget id="calculator">63 + 57</gadget>
<output>120</output>

<gadget id="calculator">960 / 120</gadget>
<output>8</output>

<result>8</result>