There are 20 frogs per kilogram on average, and each frog can eat 10,000 pests per year on average, and 10,000 pests will cause us to lose 60 kilograms of food, so eating 1 kilogram of frogs is equivalent to how many kilograms of food is lost.
平均1千克青蛙有20只，每只青蛙平均每年可吃掉1万只害虫，而1万只害虫会使我们损失粮食60千克，因此每吃掉1千克青蛙就相当于损失粮食多少千克．
<gadget id="calculator">20 * 60</gadget>
<output>1_200</output>

<result>1_200</result>