Answer ①42+40=82 (people) The number of people in a grade is 82X85=6970. The total score of Grade A ② Because Five (1) is 40 people and the average score is 87. 1, the total score is 40X87. 1=3484. ③ So 6970-3484 = there are 42 students in the class, so it is listed as: 3486÷42=83 (points), so the score of Class 5 (2) is 83 (points). ⑤ Thank you for your cooperation -L&K Record-Flying Rabbit o(∩_∩)o