A and B are 1200 kilometers apart, and two trains are traveling towards each other. Car A travels 240 kilometers per hour, and car B travels 320 kilometers per hour. Car A goes ahead for 1.5 hours before car B starts. How many hours later will car B and car A meet?
甲乙两地相距1200千米，两列火车相向而行．甲车每小时行240千米，乙车每小时行320千米．甲车先行1.5小时后乙车才出发，几小时后乙车与甲车相遇？
<gadget id="calculator">240 * 1.5</gadget>
<output>360</output>

<gadget id="calculator">1_200 - 360</gadget>
<output>840</output>

<gadget id="calculator">240 + 320</gadget>
<output>560</output>

<gadget id="calculator">840 / 560</gadget>
<output>3/2 = around 1.5</output>

<result>3/2 = around 1.5</result>