The railway from Beijing to Shanghai is about 1464 kilometers long. Now a train has traveled 648 kilometers. If the train travels 68 kilometers per hour, how many hours will it take for the train to reach the destination?
从北京到上海的铁路长约1464千米，现在一列火车已走了648千米，如果这列火车每小时行68千米，还有几小时火车到达终点？
<gadget id="calculator">1_464 - 648</gadget>
<output>816</output>

<gadget id="calculator">816 / 68</gadget>
<output>12</output>

<result>12</result>