The engineering team wanted to build a road, originally planned to be completed by 18 people in 25 days. In order to catch up with the construction period, it needs to be completed 10 days in advance, so how many workers do you actually need to arrange? (Solve with ratio)
工程队要修一条公路，原计划18个人25天完成．为了赶工期，需要提前10天完成，这样实际需要安排多少个工人？(用比例解)
<gadget id="calculator">18 * 25</gadget>
<output>450</output>

<gadget id="calculator">25 - 10</gadget>
<output>15</output>

<gadget id="calculator">450 / 15</gadget>
<output>30</output>

<result>30</result>