Aunt Zhang from the landscaping office sprayed 82 apple trees with syrup from 8:00 am to 10:00 am. How many apple trees does she spray on average per hour?
园林绿化所的张阿姨早晨8时到10时，共给82棵苹果树喷了药水，她平均每小时喷多少棵？
<gadget id="calculator">10 - 8</gadget>
<output>2</output>

<gadget id="calculator">82 / 2</gadget>
<output>41</output>

<result>41</result>