The engineering team will build a 126km long highway. Team A and Team B will construct the road from opposite ends at the same time, and the road will be repaired in 14 days, and Team A will repair 4km every day. How many kilometers does Team B repair every day?
工程队要修建一条长126km的公路．甲、乙两小队从两端同时相向修建，14天修好这条路，甲队每天修4km．乙队每天修多少千米？
<gadget id="calculator">126 / 14</gadget>
<output>9</output>

<gadget id="calculator">9 - 4</gadget>
<output>5</output>

<result>5</result>