The food box processing factory used to produce 500 food boxes every day, but now it can produce 100 more food boxes every day due to the purchase of production equipment. According to this calculation, the production of 18,000 food boxes can be completed a few days earlier than the original task?
食品盒加工厂原来每天生产食品盒500个，由于购进了生产设备，现在每天可以多生产食品盒100个．照这样计算生产18000个食品盒，可以比原来提前几天完成任务？
<gadget id="calculator">18_000 / 500</gadget>
<output>36</output>

<gadget id="calculator">500 + 100</gadget>
<output>600</output>

<gadget id="calculator">18_000 / 600</gadget>
<output>30</output>

<gadget id="calculator">36 - 30</gadget>
<output>6</output>

<result>6</result>