SOLUTION: A total of 50 juniors and seniors were given a mathematics test. The 35 juniors attained an average score of 80 while the 15 seniors attained an average of 70. What was the average

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Question 469564: A total of 50 juniors and seniors were given a mathematics test. The 35 juniors attained an average score of 80 while the 15 seniors attained an average of 70. What was the average score for all 50 students who took the test?
Answer by jorel1380(3719) About Me  (Show Source):
You can put this solution on YOUR website!
35x80=2800
15x70=1050
2800+1050/50=77..