The total length of a circular skating rink is 150 meters. If a lamp is installed every 15 meters along this circle, how many lamps will be installed in total?
圆形溜冰场的一周全长是150米，如果沿着这一圈每隔15米安装一盏灯，一共需要装多少盏灯．
<gadget id="calculator">150 / 15</gadget>
<output>10</output>

<result>10</result>