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? (Solve with ratio)
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？(用比例解)
<gadget id="calculator">200 * 6</gadget>
<output>1_200</output>

<gadget id="calculator">15 / 100</gadget>
<output>3/20 = around 0.15</output>

<gadget id="calculator">200 * (3/20)</gadget>
<output>30</output>

<gadget id="calculator">1_200 / 30</gadget>
<output>40</output>

<gadget id="calculator">40 - 6</gadget>
<output>34</output>

<result>34</result>