The distance between A and B is 1230 km. Two cars drive from two cities at the same time, the car from city A travels 49.8 kilometers per hour, and the car from city B travels 52.7 kilometers per hour. How many hours later will the two cars meet?
甲乙两城相距1230千米．两辆汽车同时从两城相对开出，甲城开出的汽车每小时行49.8千米，乙城开出的汽车每小时行52.7千米．几小时后两车相遇？
<gadget id="calculator">49.8 + 52.7</gadget>
<output>102.5</output>

<gadget id="calculator">1_230 / 102.5</gadget>
<output>12</output>

<result>12</result>