It takes 15 days for A and B to complete a job together. Now, after A and B cooperate for 10 days, B will do it alone for 6 days. There is still (1/10) of the job left. How many days will it take for A to complete these tasks alone?
甲乙合作一项工作要15天才能完成，现在甲乙合作10天后，再由乙独做6天，还剩下这项工作的(1/10)，甲单独完成这些工作要多少天？
<gadget id="calculator">1 / 15</gadget>
<output>1/15 = around 0.066667</output>

<gadget id="calculator">(1/15) * 10</gadget>
<output>2/3 = around 0.666667</output>

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

<gadget id="calculator">1 - (2/3) - (1/10)</gadget>
<output>7/30 = around 0.233333</output>

<gadget id="calculator">(7/30) / 6</gadget>
<output>7/180 = around 0.038889</output>

<gadget id="calculator">(1/15) - (7/180)</gadget>
<output>1/36 = around 0.027778</output>

<gadget id="calculator">1 / (1/36)</gadget>
<output>36</output>

<result>36</result>