There are 300 workers in the first workshop, of which male workers accounted for (2/5), and then fell into a group of male workers. At this time, the ratio of male workers to female workers was 3:2. The transferred male workers were how many people?
第一车间有职工300人，其中男职工占(2/5)，后又掉进一批男职工，这时男职工和女职工人数的比是3：2，调进的这批男职工有多少人？
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">1 - (2/5)</gadget>
<output>3/5 = around 0.6</output>

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

<gadget id="calculator">(3/5) / (2/5)</gadget>
<output>3/2 = around 1.5</output>

<gadget id="calculator">300 * (3/2)</gadget>
<output>450</output>

<gadget id="calculator">450 - 300</gadget>
<output>150</output>

<result>150</result>