SOLUTION: a total of 50 juniors and seniors were given a mathematics test. the 35 jrs attainted an average score of 80 while the 15 srs. attained an average of 70. what was the average score

Algebra ->  Average -> SOLUTION: a total of 50 juniors and seniors were given a mathematics test. the 35 jrs attainted an average score of 80 while the 15 srs. attained an average of 70. what was the average score      Log On


   

Question 283764: a total of 50 juniors and seniors were given a mathematics test. the 35 jrs attainted an average score of 80 while the 15 srs. attained an average of 70. what was the average score for all 50 students who took the test?
Answer by dabanfield(803) About Me  (Show Source):
You can put this solution on YOUR website!
a total of 50 juniors and seniors were given a mathematics test. the 35 jrs attainted an average score of 80 while the 15 srs. attained an average of 70. what was the average score for all 50 students who took the test?
The "weighted" average is:
((35*80) + (15*70))/50