It takes 10 days for a project to be completed by the cooperation of teams A and B. After A works alone for 3 days, B continues to work alone for 2 days, and a total of (1/4) of the entire project is completed. Team A works alone, how many days will it take to complete the project?
做一项工程，甲、乙两队合作要10天完成．甲独做3天后，乙接着独做2天，共完成全部工程的(1/4)．甲队独做，完成这项工程要多少天．
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 / 10</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">(1/10) * 2</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">(1/4) - (1/5)</gadget>
<output>1/20 = around 0.05</output>

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

<result>20</result>