There are two workshops, A and B. If 10 people are transferred from workshop A to workshop B, the number of people in workshop B is exactly (3/4) the number of people in workshop A. It is known that workshop B originally had 50 workers, how many workers are there in workshop A?
甲乙两个车间，如果从甲车间调10人到乙车间，这时乙车间人数正好是甲车间人数的(3/4)．已知乙车间原有工人50人，甲车间有工作多少人？
<gadget id="calculator">50 + 10</gadget>
<output>60</output>

<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">60 / (3/7)</gadget>
<output>140</output>

<gadget id="calculator">140 - 50</gadget>
<output>90</output>

<result>90</result>