There is a 150-meter-long embankment. First, two stone piers are poured at both ends, and then 9 more stone piers are poured between the two stone piers, and the distance between the two adjacent stone piers is equal. The distance between two adjacent stone piers.
有一条150米长的堤坝，先在两端浇灌了两个石墩，然后在这两个石墩之间再浇灌9个，并且使相邻两个石墩之间的距离都相等，求相邻两个石墩之间的距离．
<gadget id="calculator">11 - 1</gadget>
<output>10</output>

<gadget id="calculator">150 / 10</gadget>
<output>15</output>

<result>15</result>