A highway is 400km long, and the engineering team repaired this section (1/15) in 20 days. According to this calculation, how many days will it take to complete the repair?
一条高速公路长400km，工程队20天就修了这条条的(1/15)，照这样计算，修完全程需要多少天？
<gadget id="calculator">1 / 15</gadget>
<output>1/15 = around 0.066667</output>

<gadget id="calculator">20 / (1/15)</gadget>
<output>300</output>

<result>300</result>