The length of the railway between two cities A and B is 1530 kilometers. Two trains depart from the two cities at the same time. One train travels 96 kilometers per hour, and the other train travels 108 kilometers per hour. After a few hours, the two trains meet?
甲、乙两城市间的铁路长1530千米，两列火车同时从两个城市相对开出，一列火车每时行96千米，另一列火车每时行108千米，几小时后两列火车相遇？
<gadget id="calculator">96 + 108</gadget>
<output>204</output>

<gadget id="calculator">1_530 / 204</gadget>
<output>15/2 = around 7.5</output>

<result>15/2 = around 7.5</result>