Li planned to finish typing a batch of manuscripts in 10 hours, but actually typed 6 more copies per hour, so it only took 8 hours to complete the work. How many copies of this batch of manuscripts are there?
李计划10小时打完一批稿件，由于实际每小时多打了6份，这样只要8小时就完了工作，这批稿件共多少份．
<gadget id="calculator">10 - 8</gadget>
<output>2</output>

<gadget id="calculator">8 / 2</gadget>
<output>4</output>

<gadget id="calculator">6 * 4 * 10</gadget>
<output>240</output>

<result>240</result>