To build a road, if team A alone can complete the repair in 20 days, team B alone can complete the repair in 30 days. Now Team A will work alone for 5 days, and the remaining two teams will cooperate to complete it. How many more days will it take?
修一条公路，如果甲队单独修20天能完成，乙队单独修要30天完成．现在由甲队先单独修5天，剩下的两队合作完成，还需要几天？
<gadget id="calculator">1 / 20</gadget>
<output>1/20 = around 0.05</output>

<gadget id="calculator">(1/20) * 5</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 - (1/4)</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">1 / 30</gadget>
<output>1/30 = around 0.033333</output>

<gadget id="calculator">(1/20) + (1/30)</gadget>
<output>1/12 = around 0.083333</output>

<gadget id="calculator">(3/4) / (1/12)</gadget>
<output>9</output>

<result>9</result>