Two engineering teams, A and B, jointly repair a 3,500-meter-long diversion canal. Team A repairs 50 meters more than pair B every day. Team B repairs 4 days first, and the remaining repairs by A and B are completed in 6 days. Team B jointly repairs How much rice? (Reminder: The daily workload of Team A and Team B in cooperation is equivalent to twice the daily workload of Team B and 50 meters more)
甲、乙两个工程队共修一条长3500米的引水渠，甲队每天比乙对多修50米，乙队先修4天，余下的甲、乙和修6天完成，乙队共修多少米？(提示：甲、乙两队每天合作的工作量相当于乙队每天的工作量的2倍还多50米)
<gadget id="calculator">50 * 6</gadget>
<output>300</output>

<gadget id="calculator">3_500 - 300</gadget>
<output>3_200</output>

<gadget id="calculator">4 + 6 + 6</gadget>
<output>16</output>

<gadget id="calculator">3_200 / 16</gadget>
<output>200</output>

<gadget id="calculator">4 + 6</gadget>
<output>10</output>

<gadget id="calculator">200 * 10</gadget>
<output>2_000</output>

<result>2_000</result>