Two engineering teams, A and B, work together to dig a 720-meter tunnel, each digging from one end at the same time, and it will be opened after 24 days. Team A excavates 14.5 meters per day, how many meters does Team B excavate per day?
甲乙两个工程队合开一条720米的隧道，同时各从一端开凿，经过24天开通．甲队每天开凿14.5米，乙队每天开凿多少米？
<gadget id="calculator">720 / 24</gadget>
<output>30</output>

<gadget id="calculator">30 - 14.5</gadget>
<output>15.5</output>

<result>15.5</result>