The project is to build a road. It is planned to repair 0.4km per day, and it will be completed in 40 days. The actual daily repair is 25% more than the plan. How many days can it actually be completed?
工程修一条路，计划每天修0.4km，40天修完，实际每天比计划多修25%．实际多少天可以修完？
<gadget id="calculator">0.4 * 40</gadget>
<output>16</output>

<gadget id="calculator">25 / 100</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 + (1/4)</gadget>
<output>5/4 = around 1.25</output>

<gadget id="calculator">0.4 * (5/4)</gadget>
<output>0.5</output>

<gadget id="calculator">16 / 0.5</gadget>
<output>32</output>

<result>32</result>