Two cars drive from two cities 325.5 kilometers apart at the same time, and car A travels 50.5 kilometers per hour. Car B travels 42.5 kilometers per hour. After how many hours the two cars meet? When they meet, how many kilometers will the second car need to travel to reach the destination?
两辆汽车从相距325.5千米的两城同时相对开出，甲车每小时行50.5千米．乙车每小时42.5千米，经过几小时两车相遇？相遇时，乙车还需行多少千米到达目的地？
<gadget id="calculator">50.5 + 42.5</gadget>
<output>93</output>

<gadget id="calculator">325.5 / 93</gadget>
<output>3.5</output>

<gadget id="calculator">42.5 * 3.5</gadget>
<output>148.75</output>

<gadget id="calculator">325.5 - 148.75</gadget>
<output>176.75</output>

<result>176.75</result>