The total length of a round ice skating rink is 150 meters. If lights are installed every 15 meters along this circle, how many lights are needed in total?
圆形滑冰场的一周全长是150米，如果沿着这一圈每隔15米安装一盏灯，一共需要几盏灯？
<gadget id="calculator">150 / 15</gadget>
<output>10</output>

<result>10</result>