A car drives from point A to point B in 4 hours at a speed of 60 km, and it takes only 3 hours to return. What is the speed in kilometers when the car returns?
一辆汽车从A地开到B地，用4小时，速度为60千米，返回时只用了3小时．汽车返回时的速度是多少千米？
<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>