Two engineering teams, A and B, jointly dig a 1,440-meter-long tunnel, each digging from one end at the same time, and it opened after 48 days. Team A excavates 14.5 meters per day, how many meters does Team B excavate per day? (solution by equation)
甲、乙两个工程队合开一条1440米长的隧道，同时各从一端开凿，经过48天开通．甲队每天开凿14.5米，乙队每天开凿多少米？(用方程解)
<gadget id="calculator">14.5 * 48</gadget>
<output>696</output>

<gadget id="calculator">1_440 - 696</gadget>
<output>744</output>

<gadget id="calculator">744 / 48</gadget>
<output>31/2 = around 15.5</output>

<result>31/2 = around 15.5</result>