Xiaohong made a total of 225 paper airplanes from 8 am to 1 pm. How many paper airplanes did she make on average per hour?
小红做纸飞机，从上午8时到下午1时，一共做了225架，她平均每小时做多少架？
<gadget id="calculator">225 / 5</gadget>
<output>45</output>

<result>45</result>