Teams A and B work together to complete a project in 6 days, Team A takes 15 days to complete it alone, and how many days does it take Team B to do it alone?
甲、乙两队合作一件工程需6天完成，甲队独做需15天完成，乙队独做需多少天．
<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">1 / 15</gadget>
<output>1/15 = around 0.066667</output>

<gadget id="calculator">(1/6) - (1/15)</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">1 / (1/10)</gadget>
<output>10</output>

<result>10</result>