A car travels 60 kilometers per hour from point A to point B in 5 hours, and it takes only 4 hours to return. What is the speed of the car when it returns?
一辆汽车从甲地开往乙地，每小时行60千米，用了5小时，返回时只用4小时，这辆汽车返回时速度是多少？
<gadget id="calculator">5 / 4</gadget>
<output>5/4 = around 1.25</output>

<gadget id="calculator">60 * (5/4)</gadget>
<output>75</output>

<result>75</result>