To build a road, the individual repair team A can complete the repair in 20 days, and the B team can complete the repair in 30 days. Now the two teams are cooperating, and team A rests for 2.5 days, and team B rests for a few days in the middle. In this way, it takes 14 days to complete the repair. How many days did Team B rest?
修一条公路，单独修甲队20天修完，乙队30天修完．现两队合修，中途甲队休息2.5天，乙队休息若干天，这样一共14天才修完．乙队休息了几天？
<gadget id="calculator">1 / 20</gadget>
<output>1/20 = around 0.05</output>

<gadget id="calculator">14 - 2.5</gadget>
<output>11.5</output>

<gadget id="calculator">(1/20) * 11.5</gadget>
<output>0.575</output>

<gadget id="calculator">1 - 0.575</gadget>
<output>0.425</output>

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

<gadget id="calculator">0.425 / (1/30)</gadget>
<output>12.75</output>

<gadget id="calculator">14 - 12.75</gadget>
<output>1.25</output>

<result>1.25</result>