A train departs from A to B at 7:30 and arrives at 15:30, traveling an average of 90 kilometers per hour. How many kilometers is the distance between A and B?
一列火车7：30从甲地开往乙地，15：30到达，平均每小时行驶90千米，甲、乙两地相距多少千米？
<gadget id="calculator">90 * 8</gadget>
<output>720</output>

<result>720</result>