In the school standard test, the ratio of the first batch of qualified people to the whole class is (3/8), and later 78 people passed the standard. At this time, the ratio of the qualified people to the whole class is (9/11). people?
学校达标测试，第一批达标人数与全班人数的比是(3/8)，后来又有78人达标，这时达标人数与全班人数的比是(9/11)，全班共多少人？
<gadget id="calculator">9 / 11</gadget>
<output>9/11 = around 0.818182</output>

<gadget id="calculator">3 / 8</gadget>
<output>3/8 = around 0.375</output>

<gadget id="calculator">(9/11) - (3/8)</gadget>
<output>39/88 = around 0.443182</output>

<gadget id="calculator">78 / (39/88)</gadget>
<output>176</output>

<result>176</result>