A and B planned to produce 6,000 parts in one month. In fact, A exceeded his plan by 30%, and B produced 480 more parts than he planned. In this way, the two produced a total of 1200 more than planned. How many units did B actually produce this month?
甲乙两人计划一个月共生产零件6000个，实际甲超额完成本人计划的30%，乙生产的比本人计划生产数多480个．这样下来，两人一共比计划多生产1200个，乙实际这个月生产了多少个．
<gadget id="calculator">6_000 - 2_400</gadget>
<output>3_600</output>

<gadget id="calculator">3_600 + 480</gadget>
<output>4_080</output>

<result>4_080</result>