The circumference of the circular ice skating rink is 150 meters. If a light is installed every 15 meters along the circle, how many lights should be installed in total?
圆形滑冰场的周长是150米，如果沿着一圈每隔15米安装一盏灯，一共要安装多少盏灯．
<gadget id="calculator">150 / 15</gadget>
<output>10</output>

<result>10</result>