There are 40 students in class 5① and 45 students in class ②. During the midterm exam, the average Chinese score in class ① is 2.5 points lower than that in class ②. The total score of Class 5② is 515 points higher than that of Class 5①, what is the average score of Class 5②?
五①班有40人，五②班有45人，期中考试时，五①班语文平均分比五②班少2.5分．五②班的总分比五①班多515分，求五②班平均分有多少分？
<gadget id="calculator">512 - 100</gadget>
<output>412</output>

<gadget id="calculator">412 / 5</gadget>
<output>412/5 = around 82.4</output>

<result>412/5 = around 82.4</result>