There are 180 pigs in a pig farm, and every 20 pigs need to be fed 25 kg of feed for 5 days. The existing feed is 2700 kg. How many days can they be fed?
一个养猪场有猪180头，每20头猪5天要喂25千克饲料，现有饲料2700千克，可以喂多少天．
<gadget id="calculator">25 / 5 / 20</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">2_700 / 180 / (1/4)</gadget>
<output>60</output>

<result>60</result>