There are several kilograms of pasture in the farm now. It is planned that the cows will eat 3.6kg per day, and the cows will eat 4.8kg per day. How many days can they eat pasture?
农场里现在有牧草若干千克，计划让奶牛每天吃3.6kg，12天吃完，实际每天吃4.8kg，这样的话牧草可以吃几天？
<gadget id="calculator">12 / 4.8</gadget>
<output>2.5</output>

<gadget id="calculator">3.6 * 2.5</gadget>
<output>9</output>

<result>9</result>