A car travels 11.5 kilometers per hour and reaches its destination in 28 hours. If you travel an additional 2.5 kilometers per hour, how many hours will it take to complete the journey?
一辆汽车每小时行11.5千米，28小时到达目的地．如果每小时多行2.5千米，行完全程需要多少小时？
<gadget id="calculator">11.5 + 2.5</gadget>
<output>14</output>

<gadget id="calculator">28 / 14</gadget>
<output>2</output>

<gadget id="calculator">11.5 * 2</gadget>
<output>23</output>

<result>23</result>