garment factory produces a batch of garments, the ratio of the number of completed pieces to the number of remaining pieces is 2:3, and the production task is completed by producing 2400 more pieces. How many pieces of clothing are there in total?
服装厂生产一批服装，已经完成的件数与剩下的件数比是2：3，再生产2400件就完成生产任务．这批服装一共有多少件？
<gadget id="calculator">2_400 / 3</gadget>
<output>800</output>

<gadget id="calculator">2 + 3</gadget>
<output>5</output>

<gadget id="calculator">800 * 5</gadget>
<output>4_000</output>

<result>4_000</result>