The circumference of a circular flower bed is 40 meters, and there are potted flowers every 4 meters on its side, how many potted flowers are needed in total.
一个圆形花坛的周长是40米，在它的边上每隔4米摆一盆花，一共需要多少盆花．
<gadget id="calculator">40 / 4</gadget>
<output>10</output>

<result>10</result>