A car drives from city A to city B, originally planned to travel 40 kilometers per hour, and arrives in 3.5 hours. As a result, the car traveled 75 kilometers in 1.5 hours. According to this calculation, how many hours will it arrive? (Solve with ratio)
一辆汽车从甲城开到乙城，原计划每小时行40千米，3.5小时到达．结果1.5小时行驶了75千米，照这样计算，几小时到达？(用比例解)
<gadget id="calculator">40 * 3.5</gadget>
<output>140</output>

<gadget id="calculator">75 / 1.5</gadget>
<output>50</output>

<gadget id="calculator">140 / 50</gadget>
<output>14/5 = around 2.8</output>

<result>14/5 = around 2.8</result>