The number of people in classes A, B, and C is 45, 57, and 54 respectively. Given that the average score of Class A is 91.5, the average score of Class B is 89.5, and the total average score of the three classes is 92.5, find the average score of Class C.
甲、乙、丙三个班的人数分别为45、57、54．已知甲班的平均分为91.5分，乙班的平均分为89.5分，三个班的总平均分为92.5分，求丙班的平均分．
<gadget id="calculator">45 + 57 + 54</gadget>
<output>156</output>

<gadget id="calculator">92.5 * 156</gadget>
<output>14_430</output>

<gadget id="calculator">91.5 * 45</gadget>
<output>4_117.5</output>

<gadget id="calculator">89.5 * 57</gadget>
<output>5_101.5</output>

<gadget id="calculator">14_430 - 4_117.5 - 5_101.5</gadget>
<output>5_211</output>

<gadget id="calculator">5_211 / 54</gadget>
<output>193/2 = around 96.5</output>

<result>193/2 = around 96.5</result>