A project alone takes 12 days, B alone takes 16 days, and C alone takes 20 days. If A does it for 3 days first, C does it for 5 days, and B does the rest, how much more time will it take? sky?
一项工程，甲独做要12天，乙独做要16天，丙独做要20天，如果甲先做了3天，丙又做了5天，其余的由乙去做，还要几天？
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">1 / 16</gadget>
<output>1/16 = around 0.0625</output>

<gadget id="calculator">(1/2) / (1/16)</gadget>
<output>8</output>

<result>8</result>