Li Ming entered a manuscript, originally planned to enter 24,000 words per day, completed it in 10 days, and actually entered 30,000 words per day. This took a few days less than the original plan?
李明录入一份书稿，原计划每天录入2.4万字，10天完成，实际每天录入3万字．这样比原计划少用了几天？
<gadget id="calculator">10 / 3</gadget>
<output>10/3 = around 3.333333</output>

<gadget id="calculator">2.4 * (10/3)</gadget>
<output>8</output>

<gadget id="calculator">10 - 8</gadget>
<output>2</output>

<result>2</result>