It took a tourist bus 3 hours to drive from the county to the scenic spot at a speed of 60 km/h, and it took 2 hours to return from the scenic spot. What was the speed when returning?
一辆旅游车从县城开往景点用了3小时，速度是60千米/时，从景点返回时用了2小时，返回时的速度是多少？
<gadget id="calculator">3 / 2</gadget>
<output>3/2 = around 1.5</output>

<gadget id="calculator">60 * (3/2)</gadget>
<output>90</output>

<result>90</result>