If A and B work together to complete a job in 10 days, B and C work together in 2 days, and A alone takes 24 days, how many days will it take if A, B, and C work together?
一项工作作甲、乙人合作10天完成，乙、丙两人合作2天完成；甲单独做需要24天，如果甲、乙、丙三人合作，完成这项工作需要多少天．
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">1 / 24</gadget>
<output>1/24 = around 0.041667</output>

<gadget id="calculator">(1/2) + (1/24)</gadget>
<output>13/24 = around 0.541667</output>

<gadget id="calculator">1 / (13/24)</gadget>
<output>24/13 = around 1.846154</output>

<result>24/13 = around 1.846154</result>