To build a 200-meter road, 15% of the total length was built in the first 6 days. According to this calculation, how many days will it take to complete the road?
修一条200米的路，前6天修了全长的15%，照这样计算，修完全程还要多少天？
<gadget id="calculator">15 / 100</gadget>
<output>3/20 = around 0.15</output>

<gadget id="calculator">1 - (3/20)</gadget>
<output>17/20 = around 0.85</output>

<gadget id="calculator">(3/20) / 6</gadget>
<output>1/40 = around 0.025</output>

<gadget id="calculator">(17/20) / (1/40)</gadget>
<output>34</output>

<result>34</result>