Two teams, A and B, are erecting a 150-kilometer-long fiber optic cable. The two teams start construction at the same time and complete it in 20 days. Team A erects 3.8 kilometers per day. How many meters does Team B erect every day?
甲、乙两队同架一条150千米长的光缆，两队同时动工，20天完成，甲队每天架3.8千米，乙队每天架多少米？
<gadget id="calculator">150 / 20</gadget>
<output>15/2 = around 7.5</output>

<gadget id="calculator">(15/2) - 3.8</gadget>
<output>3.7</output>

<result>3.7</result>