SOLUTION: Suppose your grades on your first four exams were 78%, 87%, 68%, and 83%. What would be the lowest possible average that your last two exams could have so that your grade in the cl

Question 485357: Suppose your grades on your first four exams were 78%, 87%, 68%, and 83%. What would be the lowest possible average that your last two exams could have so that your grade in the class, based on the average of the six exams, is at least 77%?
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
(78 + 87 + 68 + 83 + t5 + t6)/6 >= 77
316 + t5 + t6 >= 462
t5 + t6 >= 146
(t5 + t6)/2 >= 73
73% avg on tests 5 & 6 will give an overall average of 77%

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