The distance between A and B is 360 km. A car travels from A to B and plans to arrive in 4 hours. Due to weather changes, the actual travel time is 10 kilometers less than planned per hour. How many hours will it take to arrive?
甲、乙两地相距360千米．一辆汽车从甲地开往乙地，计划4小时到达．因天气变化，实际每小时比计划少行10千米，实际多少小时才能到达？
<gadget id="calculator">360 / 4</gadget>
<output>90</output>

<gadget id="calculator">90 - 10</gadget>
<output>80</output>

<gadget id="calculator">360 / 80</gadget>
<output>9/2 = around 4.5</output>

<result>9/2 = around 4.5</result>