The number of people in the first workshop of a certain factory is (3/5) that of the second workshop, and later (1/4) of the number of people in the second workshop is transferred to the first workshop. At this time, there are 255 people in the first workshop. How many people were transferred from the second workshop?
某厂一车间人数是二车间的(3/5)，后来把二车间人数的(1/4)调给一车间，这时一车间有255人．二车间调出多少人？
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">(1/4) + (3/5)</gadget>
<output>17/20 = around 0.85</output>

<gadget id="calculator">255 / (17/20)</gadget>
<output>300</output>

<gadget id="calculator">300 * (1/4)</gadget>
<output>75</output>

<result>75</result>