A project was originally planned to be completed in 125 days, but the actual number of days used was less than the original plan (1/5). How many days did it actually take?
一项工程原计划125天完成，实际用的天数比原计划少(1/5)．实际用了多少天？
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">125 * (1/5)</gadget>
<output>25</output>

<gadget id="calculator">125 - 25</gadget>
<output>100</output>

<result>100</result>