A road that is 1,500 meters long is built in one day, and 400 meters were built in the first 5 days. According to this calculation, how many days will it take to complete the road? (Solve with ratio)
修一天长1500米的路，前5天修了400米，照这样计算，修完这条路还需要多少天？(用比例解)
<gadget id="calculator">1_500 - 400</gadget>
<output>1_100</output>

<gadget id="calculator">5 * 1_100</gadget>
<output>5_500</output>

<gadget id="calculator">5_500 / 400</gadget>
<output>55/4 = around 13.75</output>

<result>55/4 = around 13.75</result>