Master Wang processes a batch of parts. The original plan is to process 30 parts per hour, which can be completed in 6 hours. The actual processing is 6 more per hour than the original plan. How many hours does it take to actually process this batch of parts?
王师傅加工一批零件，原计划每小时加工30个，6小时可以完成．实际每小时比原计划多加工6个，实际加工这批零件需要几小时？
<gadget id="calculator">30 + 6</gadget>
<output>36</output>

<gadget id="calculator">6 / 36</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">30 * (1/6)</gadget>
<output>5</output>

<result>5</result>