5 cows eat 540 kilograms of feed in 6 days, how many kilograms of feed does an average cow eat in 1 day?
5头牛6天吃掉540千克饲料，平均1头牛1天吃掉多少千克饲料？
<gadget id="calculator">540 / 6 / 5</gadget>
<output>18</output>

<result>18</result>