The engineering team built a canal, 1.2 kilometers a day, and 20% of the total length was repaired in 5 days. How many days can this canal be completed?
工程队修一条水渠，每天修1.2千米，5天修了全长的20%，这条水渠几天可以修完？
<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">(1/5) / 5</gadget>
<output>1/25 = around 0.04</output>

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

<result>25</result>