It takes 24 days to complete the construction of a room by two engineering teams, A and B. Now Team A will build it for 6 days first, and then Team B will build it for 2 days. In this way, (3/20) of the project will be completed. If Team A builds it alone from the beginning, how many days will it take?
一间房，由甲乙两个工程队合盖，需要24天完成．现在由甲队先盖6天，再由乙队盖2天，这样共完成工程的(3/20)，如果从开始就由甲队单独盖，需要多少天？
<gadget id="calculator">3 / 20</gadget>
<output>3/20 = around 0.15</output>

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

<gadget id="calculator">(1/24) * 2</gadget>
<output>1/12 = around 0.083333</output>

<gadget id="calculator">(3/20) - (1/12)</gadget>
<output>1/15 = around 0.066667</output>

<gadget id="calculator">(1/15) / 4</gadget>
<output>1/60 = around 0.016667</output>

<gadget id="calculator">1 / (1/60)</gadget>
<output>60</output>

<result>60</result>