A road construction team originally planned to build 40 meters of road every day, and completed the task in 20 days. If it is to be completed 4 days ahead of schedule, how much more will be repaired each day than the original plan?
一个修路队，原计划每天修路40米，20天完成任务．如果要提前4天完成，每天要比原计划多修百分之几？
<gadget id="calculator">20 - 4</gadget>
<output>16</output>

<gadget id="calculator">20 / 16</gadget>
<output>5/4 = around 1.25</output>

<gadget id="calculator">40 * (5/4)</gadget>
<output>50</output>

<gadget id="calculator">50 - 40</gadget>
<output>10</output>

<gadget id="calculator">10 / 40</gadget>
<output>1/4 = around 0.25</output>

<result>1/4 = around 0.25</result>