Master Li processed a total of 270 parts from 8:00 to 17:00. How many parts does Master Li process per hour on average?
李师傅从8：00到17：00共加工了270个零件．李师傅平均每小时加工多少个零件？
<gadget id="calculator">270 / 9</gadget>
<output>30</output>

<result>30</result>