Team A and Team B cooperate on a project and plan to complete it within 24 days. If team A works for 6 days and team B works for 4 days, they can only do 20% of the complete project, how many days will it take for team B to complete the project alone?
甲乙两队合作一项工程，计划在24天内完成．如果甲队做6天，乙队做4天，只能做完全工程的20%，乙队单独做完全工程需要多少天．
<gadget id="calculator">1 / 24</gadget>
<output>1/24 = around 0.041667</output>

<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">(1/24) * 4</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">(1/5) - (1/6)</gadget>
<output>1/30 = around 0.033333</output>

<gadget id="calculator">(1/30) / 2</gadget>
<output>1/60 = around 0.016667</output>

<gadget id="calculator">(1/24) - (1/60)</gadget>
<output>1/40 = around 0.025</output>

<gadget id="calculator">1 / (1/40)</gadget>
<output>40</output>

<result>40</result>