25 frogs can eat 7,500 pests in 4 hours, so how many pests can a frog eat in an hour?
25只青蛙4个小时可以吃掉7500只害虫，那么一只青蛙一个小时可以吃掉多少只害虫？
<gadget id="calculator">7_500 / 4 / 25</gadget>
<output>75</output>

<result>75</result>