Dad wants to type 2000 characters, the first time he typed (2/5) of the total number, the second time he typed (3/4) the first time, how many characters did he type the second time?
爸爸要打2000个字，第一次打了总数的(2/5)，第二次打了第一次字数的(3/4)，第二次打了多少个字？
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">2_000 * (2/5) * (3/4)</gadget>
<output>600</output>

<result>600</result>