SOLUTION: Suppose that the mean score of a class of 35 students was 76. The 20 male students in the class had a mean score of 60. What was the mean score for the 15 female students?

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Question 833679: Suppose that the mean score of a class of 35 students was 76. The 20 male students in the class had a mean score of 60. What was the mean score for the 15 female students?

Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
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Suppose that the mean score of a class of 35 students was 76.
The 20 male students in the class had a mean score of 60.
What was the mean score for the 15 female students?
:
Let m = mean score of the girls
%28%2820%2860%29%2B15m%29%29%2F35 = 76
do the math and multiply both sides by 35
1200 + 15m = 2660
15m = 2660 - 1200
m = 1460/15
m = 971%2F3 is the average of the girls