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 469739: 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 edjones(8007) (Show Source):
You can put this solution on YOUR website! 35*80=2800
15*70=1050
2800+1050=3850
3850/50=77 the average score for all 50 students who took the test.
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Ed
