The distance between Fenghuang Mountain and Qingshan Karst Cave is 240 kilometers. A bus travels from Fenghuang Mountain to Qingshan Karst Cave at a speed of 60 kilometers per hour, and the time required for a car to travel from Fenghuang Mountain to Qingshan Karst Cave is less than that of a bus. In 1 hour, how many kilometers per hour does the car travel?
凤凰山与青山溶洞之间相距240千米，一辆大客车以每小时60千米的速度从凤凰山行使到青山溶洞，而小轿车从凤凰山行使到青山溶洞所需要的时间比大客车少用1小时，小轿车每小时行使多少千米？
<gadget id="calculator">240 / 60</gadget>
<output>4</output>

<gadget id="calculator">4 - 1</gadget>
<output>3</output>

<gadget id="calculator">240 / 3</gadget>
<output>80</output>

<result>80</result>