What do a, b, c, d, e and f mean in Binzhou senior high school entrance examination?
Hello, A(90- 100), B(80-89), C(70-79), D(60-69), E(50-59). I can't find the score, but I can calculate it myself. According to my formula, the difference is no more than 2 points. A, B, C, D, E, take the highest score, take the lowest score, take the middle score, add them up and divide them by 3 to calculate the total score, and then divide them by 9 to calculate the average score.