Problema Solution
A total of 50 juniors and seniors were given a math test. The 35 juniors attained an average score of 80 while the 15 seniors attained a score of 70. What was the average score for all 50 students who took the test?
Answer provided by our tutors
total of 50 juniors and seniors were given a math test. The 35 juniors attained an average score of 80 while the 15 seniors attained a score of 70.
average score is (35*80+15*70)/50 = (2800+1050)/50= 77