The original number of boys in a certain class was the number of the whole class (9/11), and then 4 girls were transferred. At this time, the number of girls was 25% of the whole class. How many students were there in the class?
某班原有男生人数是全班人数的(9/11)，后来又转来4名女生，这时女生人数是全班的25%，原来该班有学生多少名？
<gadget id="calculator">4 - 1</gadget>
<output>3</output>

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">11 - 9</gadget>
<output>2</output>

<gadget id="calculator">2 / 9</gadget>
<output>2/9 = around 0.222222</output>

<gadget id="calculator">(1/3) - (2/9)</gadget>
<output>1/9 = around 0.111111</output>

<gadget id="calculator">9 / 11</gadget>
<output>9/11 = around 0.818182</output>

<gadget id="calculator">4 / (1/9) / (9/11)</gadget>
<output>44</output>

<result>44</result>