There are 300 computers in Minghua Computer City, sold on the first day (1/4), and sold on the second day (2/5), how many computers were sold on the second day?
明华电脑城有电脑300台，第一天卖出(1/4)，第二天卖出的是第一天的(2/5)，第二天卖出电脑多少台？
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">300 * (1/4) * (2/5)</gadget>
<output>30</output>

<result>30</result>