Two trains A and B depart from two stations 1164 kilometers apart at the same time. Train A travels 45 kilometers per hour and train B travels 52 kilometers per hour. How many hours later will the two trains meet?
甲乙两列火车从相距1164千米的两站同时相对开出，甲车每小时行45千米，乙车每小时行52千米，几小时后两车相遇？
<gadget id="calculator">45 + 52</gadget>
<output>97</output>

<gadget id="calculator">1_164 / 97</gadget>
<output>12</output>

<result>12</result>