There are 40 people in the first workshop of Shengli Factory. Due to work needs, 10% of the people are transferred to the second workshop. At this time, the number of people in the first workshop is 4 less than the 80% of the second workshop. How many people are there in the second workshop now?
胜利工厂第一车间有40人，由于工作需要，调出10%的人到第二车间．这时第一车间的人数比第二车间的80%少4人．第二车间现在有多少人．
<gadget id="calculator">10 / 100</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">1 - (1/10)</gadget>
<output>9/10 = around 0.9</output>

<gadget id="calculator">40 * (9/10)</gadget>
<output>36</output>

<gadget id="calculator">36 + 4</gadget>
<output>40</output>

<gadget id="calculator">80 / 100</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">40 / (4/5)</gadget>
<output>50</output>

<result>50</result>