Two greening teams, A and B, are planting trees. Team A needs to plant 560 trees, and team B needs to plant 500 trees. A greening team plants 80 trees a day, and B greening team plants 50 trees a day. After how many days, the remaining saplings of the two teams are the same.
甲、乙两个绿化队在植树造林，甲绿化队需要植树560棵，乙绿化队需要植树500棵．甲绿化队每天植树80棵，乙绿化队每天植树50棵，多少天后，两队剩下的树苗同样多．
<gadget id="calculator">560 - 500</gadget>
<output>60</output>

<gadget id="calculator">80 - 50</gadget>
<output>30</output>

<gadget id="calculator">60 / 30</gadget>
<output>2</output>

<result>2</result>