The road construction team wanted to build a road. On the first day, they built the full length (1/20), and after another 4 days of repairing, there were still 800 meters left to be completed. How long is the total length of this road?
修路队要修一条路，第一天修了全长的(1/20)，照这样又修了4天，还剩下800米没修完，这条路全长多少米？
<gadget id="calculator">1 / 20</gadget>
<output>1/20 = around 0.05</output>

<gadget id="calculator">1 + 4</gadget>
<output>5</output>

<gadget id="calculator">(1/20) * 5</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 - (1/4)</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">800 / (3/4)</gadget>
<output>3_200/3 = around 1_066.666667</output>

<result>3_200/3 = around 1_066.666667</result>