Two engineering teams work together to dig a 1500-meter tunnel at the same time. Engineering team A starts at one end and digs 14 meters per day, while engineering team B starts at the other end and digs 16 meters per day. How many days will it take for the tunnel to be dug through?
两个工程队同时合开一条1500米的隧道，甲工程队在一端开工，每天挖14米，乙工程队在另一端开工，每天挖16米，多少天后隧道可以挖通？
<gadget id="calculator">14 + 16</gadget>
<output>30</output>

<gadget id="calculator">1_500 / 30</gadget>
<output>50</output>

<result>50</result>