Two engineering teams excavated the tunnel and dug a total of 750 meters in 25 days. Team A dug 18 meters per day, and how many meters per day did Team B?
两个工程队开凿隧道，25天共凿了750米，甲队每天凿洞18米，乙队每天凿洞多少米？
<gadget id="calculator">750 / 25</gadget>
<output>30</output>

<gadget id="calculator">30 - 18</gadget>
<output>12</output>

<result>12</result>