A car travels from A to B at a speed of 60 kilometers per hour. It takes 12 hours to return and only 9 hours to return. What is the speed of the car when it returns?
一辆汽车以每小时60千米的速度从甲地开往乙地，用了12小时，返回时只用9小时，这辆汽车返回时速度是多少？
<gadget id="calculator">12 / 9</gadget>
<output>4/3 = around 1.333333</output>

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

<result>80</result>