Place a potted flower every 5 meters around a circular pool with a circumference of 100 meters. How many potted flowers are there in total?
在一个周长100米的圆形水池周围，每隔5米放一盆花．一共要放多少盆花？
<gadget id="calculator">100 / 5</gadget>
<output>20</output>

<result>20</result>