The distance between A and B is 735 kilometers. A train runs from A to B. An average of 52.5 kilometers per hour, 6.5 hours in the morning, how many hours in the afternoon?
甲、乙两城相距735千米，一列火车从甲城开往乙城．平均每小时行52.5千米，上午行了6.5小时，下午还要行多少小时？
<gadget id="calculator">735 / 52.5</gadget>
<output>14</output>

<gadget id="calculator">14 - 6.5</gadget>
<output>7.5</output>

<result>7.5</result>