A car delivers goods from place A to place B. It takes 6 hours to go there at a speed of 32 km/h, and it only takes 4 hours to return. What is the speed of return?
汽车从甲地到乙地送货，去时用了6小时，速度是32千米/小时，回来只用了4小时，回来的速度是多少？
<gadget id="calculator">6 / 4</gadget>
<output>3/2 = around 1.5</output>

<gadget id="calculator">32 * (3/2)</gadget>
<output>48</output>

<result>48</result>