bus departs from Zhangcun, and if it travels 60 kilometers per hour, it can reach Lizhuang in 4 hours. It only took 3 hours to arrive. How many kilometers per hour does the car actually travel on average?
一辆大巴车从张村出发，如果每小时行驶60千米，4小时就可以到达李庄．结果只用了3个小时就到达了．这辆汽车实际平均每小时行驶多少千米？
<gadget id="calculator">4 / 3</gadget>
<output>4/3 = around 1.333333</output>

<gadget id="calculator">60 * (4/3)</gadget>
<output>80</output>

<result>80</result>