A car travels 60 kilometers per hour from place A to place B, and it takes 3 hours to get there. If it takes 2.5 hours to get there, how many kilometers does it need to travel per hour? (Solve with ratio)
一辆汽车从甲地开往乙地，每小时行60千米，3小时到达，若要2.5小时到达，每小时需行多少千米？(用比例解)
<gadget id="calculator">60 * 3</gadget>
<output>180</output>

<gadget id="calculator">180 / 2.5</gadget>
<output>72</output>

<result>72</result>