The distance between Qingdao and City A is 360 kilometers. A car plans to arrive in 4 hours, but suddenly encounters heavy rain and travels 40 kilometers less than planned per hour. How many hours will it actually arrive?
青岛到A城相距360千米．一辆汽车计划4小时到达，但是突遇大雨，每小时比计划少行40千米，实际几小时到达？
<gadget id="calculator">360 / 4</gadget>
<output>90</output>

<gadget id="calculator">90 - 40</gadget>
<output>50</output>

<gadget id="calculator">360 / 50</gadget>
<output>36/5 = around 7.2</output>

<result>36/5 = around 7.2</result>