There are 3.5 tons of rice in the school cafeteria, and 0.25 tons are used in 5 days. According to this calculation, how many days can the remaining rice be used for?
学校食堂有大米3.5吨，5天用去0.25吨，照这样计算，剩下的大米可以用几天？
<gadget id="calculator">2.25 / 0.05</gadget>
<output>45</output>

<result>45</result>