There is a manuscript that Li Hong can type in 30 minutes. When she typed it for 25 minutes, there are still 200 characters left to be typed. How many characters are there in this manuscript?
有一份稿件，李红30分钟可以打完，当她打了25分钟时，还有200个字没有打，这份稿件共有多少个字？
<gadget id="calculator">1 / 30</gadget>
<output>1/30 = around 0.033333</output>

<gadget id="calculator">(1/30) * 25</gadget>
<output>5/6 = around 0.833333</output>

<gadget id="calculator">1 - (5/6)</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">200 / (1/6)</gadget>
<output>1_200</output>

<result>1_200</result>