Xinya Garment Factory has 3 workshops. The number of people in the first workshop accounts for 30% of the total number of employees in the factory. The ratio of the number of people in the second and third workshops is 3:2. The second workshop has 30 more people than the first workshop. The factory has a total of How many employees?
新亚服装厂有3个车间，第一车间的人数占全厂职工总数的30%，第二、三车间的人数比是3：2，第二车间比第一车间多30人，这个厂共有职工多少人？
<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">(3/5) * 0.7</gadget>
<output>0.42</output>

<gadget id="calculator">0.42 - 0.3</gadget>
<output>0.12</output>

<gadget id="calculator">30 / 0.12</gadget>
<output>250</output>

<result>250</result>