The circular runway of a sports field is 500 meters long, and a pot of chrysanthemums is placed every 20 meters on the outer circle of the runway. How many pots of chrysanthemums should be prepared in total?
某运动场的环形跑道全长500米，在跑道的外圈上每隔20米放一盆菊花，共需准备多少盆菊花？
<gadget id="calculator">500 / 20</gadget>
<output>25</output>

<result>25</result>