Xinguang TV Factory plans to manufacture 5,400 TVs in 30 days, but actually manufactures 20 more TVs per day than planned. Based on this calculation, how many days can the task be completed in advance?
新光电视机厂计划30天制造5400台电视，实际每天比计划多制造20台，照这样计算，可以提前几天完成任务？
<gadget id="calculator">5_400 / 30</gadget>
<output>180</output>

<gadget id="calculator">180 + 20</gadget>
<output>200</output>

<gadget id="calculator">5_400 / 200</gadget>
<output>27</output>

<gadget id="calculator">30 - 27</gadget>
<output>3</output>

<result>3</result>