If a potted flower is placed every 5 meters around a circular flower bed with a circumference of 100 meters, how many potted flowers are needed in total?
在周长为100米的圆形花坛周围每隔5米放一盆花，一共需要多少盆花．
<gadget id="calculator">100 / 5</gadget>
<output>20</output>

<result>20</result>