SOLUTION: Fred has scores of 85, 91, 78, and 82. How much must he score on the fifth test to average 85 on all five?

SOLUTION: Fred has scores of 85, 91, 78, and 82. How much must he score on the fifth test to average 85 on all five?

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Question 916134: Fred has scores of 85, 91, 78, and 82. How much must he score on the fifth test to average 85 on all five?
Answer by JulietG(1812) (Show Source): You can put this solution on YOUR website!
Assuming all the tests are worth the same 100 points, he will need 85*5 points, or a total of 425 points.
He already has 85+91+78+82 = 336. His final test needs to be 425 - 336, or an 89.

Fred should stay in this weekend and study!
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