Question

A class contain 8 male students and 12 female students if the average score of the entire class for a certain exam is 70 and the average score of the male students in the same exam is 55 what is the average score of the female students?​

Answer 1

Answer:

Let x be the average score for female students.

Equation:

(8*55+12x)/20 = 70

440+12x = 1400

12x = 960

x = 80