SOLUTION: A class contains 8 male students and 12 female students. If the average for entire class for a certain exam is 70,and the average score of the male students in the exam is 55, what
Algebra ->
Average
-> SOLUTION: A class contains 8 male students and 12 female students. If the average for entire class for a certain exam is 70,and the average score of the male students in the exam is 55, what
Log On
Question 756360: A class contains 8 male students and 12 female students. If the average for entire class for a certain exam is 70,and the average score of the male students in the exam is 55, what is the average score of the female students? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! A class contains 8 male students and 12 female students. If the average for entire class for a certain exam is 70,and the average score of the male students in the exam is 55, what is the average score of the female students?
---
Let "x" be the average score for female students.
----------------
Equation:
(8*55+12x)/20 = 70
------
440+12x = 1400
------
12x = 960
x = 80
===============
Cheers,
Stan H.
=================
(