train departs from A at 6:30 and arrives at B at 18:30. The train travels 75 kilometers per hour. How many kilometers are there between A and B?
一列火车6时30分从甲地开出，18时30分到达乙地，火车每小时行75千米，甲乙两地相距多少千米？
<gadget id="calculator">75 * 12</gadget>
<output>900</output>

<result>900</result>