Beibei types 250 words per minute. How many minutes does it take to finish typing a document with 1000 characters?
贝贝每分钟打字250个，要打完1000个字的一份文件，要打多少分钟．
<gadget id="calculator">1_000 / 250</gadget>
<output>4</output>

<result>4</result>