To do a job, B's work efficiency is equal to the sum of the work efficiency of A and C, and the ratio of C's work efficiency to the sum of A and B's work efficiency is 1:5. If it takes only 8 days for three people to work together, how many days will it take for A to do it alone?
做一件工作，乙的工作效率等于甲丙二人工作效率的和，丙的工作效率与甲乙二人工作效率和的比是1：5．如果三人合做只需8天就完成了，那么甲一人单独做需要多少天才能完成．
<gadget id="calculator">1 / 8</gadget>
<output>1/8 = around 0.125</output>

<gadget id="calculator">(1/8) / 2</gadget>
<output>1/16 = around 0.0625</output>

<gadget id="calculator">(1/8) / 6</gadget>
<output>1/48 = around 0.020833</output>

<gadget id="calculator">(1/16) - (1/48)</gadget>
<output>1/24 = around 0.041667</output>

<gadget id="calculator">1 / (1/24)</gadget>
<output>24</output>

<result>24</result>