SOLUTION: mr.valdez gives his students 6 examinations in each grading period.the scores of paul in the first five exams are 80,79,84,87 and 93.if paul hopes to get an average score for the 6
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Question 1198354: mr.valdez gives his students 6 examinations in each grading period.the scores of paul in the first five exams are 80,79,84,87 and 93.if paul hopes to get an average score for the 6 exams to be at least 4 marks that his average score for the first 4 exams,find the least score that he must get in the sixth exam Answer by ewatrrr(24785) (Show Source):
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to be atleast 4 marks 'higher' that his average score for the first 4 exam
(80+79+84+87 )/4 = 82.5
(80+79+84+87+93+x )/6 ≥ 86.5
x ≥ 6*86.5-423 ≥ 517-423 ≥ 96
the least score that he must get in the sixth exam is 96
