A watch factory originally planned to produce 1,000 watches in 25 days, but actually produced 50 watches a day. How many days can the task be completed?
某手表厂原计划25天生产1000只手表，实际每天生产50只，实际多少天就能完成任务．
<gadget id="calculator">1_000 / 50</gadget>
<output>20</output>

<result>20</result>