It takes 12 days to complete a project that teams A and B work together at the same time. It is known that the work efficiency of team A is 1(1/2) times that of team B. So how many days will it take Team A to complete this project alone?
一项工程，甲乙两队同时合做，要12天完成，已知甲队的工作效率是乙队的1(1/2)倍．那么甲队单独做这项工程要几天完成？
<gadget id="calculator">1 / 12</gadget>
<output>1/12 = around 0.083333</output>

<gadget id="calculator">3 + 2</gadget>
<output>5</output>

<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">(1/12) * (3/5)</gadget>
<output>1/20 = around 0.05</output>

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

<result>20</result>