Daming Advertising Company has a total of 33 employees, and the ratio of male employees to female employees is 7:4. How many female employees are there? How many different solutions can you think of?
大明广告公司共有职工33人，其中男职工与女职工人数的比是7：4，求女职工多少人？你能想出几种不同的解法？
<gadget id="calculator">7 + 4</gadget>
<output>11</output>

<gadget id="calculator">33 / 11</gadget>
<output>3</output>

<gadget id="calculator">3 * 4</gadget>
<output>12</output>

<result>12</result>