A greening team planted trees this spring, and planned to plant 80 trees a day, and completed the task in 25 days. The actual number of trees planted per day was 1.25 times the original plan. How many days did you actually complete the task?
一个绿化队今年春季植树，计划每天植树80棵，25天完成任务，实际每天植树的棵数是原计划的1.25倍．实际几天完成了任务？
<gadget id="calculator">80 * 25</gadget>
<output>2_000</output>

<gadget id="calculator">80 * 1.25</gadget>
<output>100</output>

<gadget id="calculator">2_000 / 100</gadget>
<output>20</output>

<result>20</result>