Question 317490
A total of 50 juniors ande seniors were given a mathematics test. The 35 juniors
attained an average score of 80while th 15 seniors attained an average of70.
What the average score for all 50 students who took the test?
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Total Junior points: 35*80 = 2800 
Total Senior points: 15*70 = 1050
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Average of total = (2800+1050)/(35+15) = 77
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A. 73
B. 75
C. 76
D. 77
E. 78 
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SECOND question : 
Adam tried to compute the average of his 7 test scores. He mistakenly divided
the correct sum of all of his test scores by 6 , which yielded 84.
What is Adam's correct average test score?
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Equation: 
(correct sum)/6 = 84
correct sum = 6*84 = 504 points
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corrected average test score = 504/7 = 72
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A. 70
B. 72
C. 76
D. 77
E. 98
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Cheers,
Stan H.