In order to meet the 2500th anniversary of Yangzhou city construction, the municipal government decided to carry out tree planting activities in two green areas, A and B, among which 900 trees were to be planted in area A, and 1,250 trees were to be planted in area B. Now there are three greening teams A, B, and C participating in tree planting. Team A can plant 24 trees a day, team B can plant 30 trees a day, and team C can plant 32 trees a day. Now team A is in place A, and team C is planting trees in place B at the same time. At the beginning, team B first helped team A in place A, and then went to help team C in place B a few days later. As a result, the three teams ended at the same time. Where did team B start? The one who left A to go to B to help Team C plant trees?
为迎接扬州城建城2500周年，市政府决定在A、B两块绿地进行植树活动，其中A地要植树900棵，B地要植树1250棵．现在有甲、乙、丙三个绿化队参与植树，甲队每天能植树24棵，乙队每天能植树30棵，丙队每天能植树32棵．现在甲队在A地，丙队在B地同时植树，开始时乙队先在A地帮助甲队，几天后到B地帮助丙队，结果三队同时结束，请问乙队是在第几天离开A地去B地帮助丙队植树的？
<gadget id="calculator">900 + 1_250</gadget>
<output>2_150</output>

<gadget id="calculator">24 + 30 + 32</gadget>
<output>86</output>

<gadget id="calculator">2_150 / 86</gadget>
<output>25</output>

<gadget id="calculator">24 * 25</gadget>
<output>600</output>

<gadget id="calculator">900 - 600</gadget>
<output>300</output>

<gadget id="calculator">300 / 25</gadget>
<output>12</output>

<result>12</result>