The roads from A to B are all slopes with the same angle, and the distance of the uphill road is half of that of the downhill road. A car starts from A, and its speed on the uphill road is half of that on the downhill road. 32 minutes just arrived at B. How many minutes does it take for this car to travel from point B to point A?
从甲地到乙地的路全是角度相同的坡度，其中上坡路的路程是下坡路的一半．一辆汽车从甲地出发，行上坡路的速度也是下坡路时的一半．32分钟刚好到达乙地．这辆车从乙地返回甲地，要行多少分钟呢？
<gadget id="calculator">32 / 2</gadget>
<output>16</output>

<gadget id="calculator">32 - 16</gadget>
<output>16</output>

<gadget id="calculator">16 * 2</gadget>
<output>32</output>

<gadget id="calculator">16 / 2</gadget>
<output>8</output>

<gadget id="calculator">32 + 8</gadget>
<output>40</output>

<result>40</result>