Zhang Qiang typed a manuscript. In the first hour, he typed 2400 words, which happened to be (3/8) of this manuscript. In the second hour, he typed (1/2) of this manuscript. How many words were typed in the second hour? ?
张强打一份稿件，第一小时打了2400个字，正好是这份稿件的(3/8)，第二小时打了这份稿件的(1/2)，第二小时打了多少个字？
<gadget id="calculator">3 / 8</gadget>
<output>3/8 = around 0.375</output>

<gadget id="calculator">2_400 / (3/8)</gadget>
<output>6_400</output>

<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">6_400 * (1/2)</gadget>
<output>3_200</output>

<result>3_200</result>