Master Li processes a batch of parts, plans to process 24 per hour, completes in 7 hours, and completes the task in 6 hours. Master Wang processed 240 parts in 8 hours. How many more parts does Master Wang process per hour than Master Li?
李师傅加工一批零件，计划每小时加工24个，7小时完成，结果6小时就完成任务．王师傅8小时加工完240个零件．王师傅每小时加工的零件比李师傅多多少个．
<gadget id="calculator">240 / 8</gadget>
<output>30</output>

<gadget id="calculator">24 * 7</gadget>
<output>168</output>

<gadget id="calculator">168 / 6</gadget>
<output>28</output>

<gadget id="calculator">30 - 28</gadget>
<output>2</output>

<result>2</result>