Xiao Ming rides a bicycle to and from A and B. The first section is an uphill road, and the latter section is a downhill road. The uphill road is 8 kilometers per hour, and the downhill road is 12 kilometers per hour. It takes 10 hours to go back and forth. How many kilometers are there between A and B?
小明骑自行车往返于甲乙两地，前一段是上坡路，后一段是下坡路，上坡每小时8千米，下坡每小时12千米．往返一次需10小时，甲乙两地相距多少千米？
<gadget id="calculator">10 * 12</gadget>
<output>120</output>

<gadget id="calculator">8 + 12</gadget>
<output>20</output>

<gadget id="calculator">120 / 20</gadget>
<output>6</output>

<gadget id="calculator">8 * 6</gadget>
<output>48</output>

<result>48</result>