SOLUTION: a total of 50 juniors and seniors were given a math test. 35 juniors contained an average of 80 and 15 seniors contained an average of 70. what was the average score of all 50 stud

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Question 36246: a total of 50 juniors and seniors were given a math test. 35 juniors contained an average of 80 and 15 seniors contained an average of 70. what was the average score of all 50 students?
Answer by Prithwis(166) About Me  (Show Source):
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Total Score of 50 students was 35*80 + 15*70 = 10(280+105) = 3850;
Average score of 50 students = 3850/50 = 77