The engineering team completes (1/4) of a project in 3 days. According to this calculation, how many days will it take to complete the whole project? what is the correct formula
工程队3天完成一项工程的(1/4)，照这样算，完成全工程需要多少天？正确算式是多少
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">3 / (1/4)</gadget>
<output>12</output>

<result>12</result>