There are 210 people in workshop A and B of the cotton factory. If (1/10) people are transferred from workshop B to workshop A, the ratio of the number of people in workshop A and B is now 4:3. How many people were there in workshop B?
棉厂甲乙两个车间共有210人，如果从乙车间调出(1/10)的人数到甲车间，那么现在甲乙两个车间的人数的比是4：3，原来乙车间有多少人？
<gadget id="calculator">4 + 3</gadget>
<output>7</output>

<gadget id="calculator">3 / 7</gadget>
<output>3/7 = around 0.428571</output>

<gadget id="calculator">1 / 10</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">(3/7) / (9/10)</gadget>
<output>10/21 = around 0.47619</output>

<gadget id="calculator">210 * (10/21)</gadget>
<output>100</output>

<result>100</result>