A garment factory processes a batch of garments, and plans to process 250 pieces per day, which can be completed in 18 days. The actual daily processing is more than the original plan (1/5), how many days can the actual work be completed? (Solve with ratio)
某服装厂加工一批服装，计划每天加工250件，18天可以完成．实际每天比原计划多加工(1/5)，实际多少天可以完工？(用比例解)
<gadget id="calculator">250 * 18</gadget>
<output>4_500</output>

<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">250 * (1/5)</gadget>
<output>50</output>

<gadget id="calculator">250 + 50</gadget>
<output>300</output>

<gadget id="calculator">4_500 / 300</gadget>
<output>15</output>

<result>15</result>