SOLUTION: After four tests Trudy's average score was 85. If her score is 90 on the fifth test what will her average on all five tests be?

SOLUTION: After four tests Trudy's average score was 85. If her score is 90 on the fifth test what will her average on all five tests be?

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Question 947012: After four tests Trudy's average score was 85. If her score is 90 on the fifth test what will her average on all five tests be?
Answer by amarjeeth123(569) (Show Source): You can put this solution on YOUR website!
After four tests Trudy's average score was 85.
The sum of the scores on the four tests=85*4=340.
Trudy's score on the fifth test is 90.
The average on all five tests=(340+90)/5=430/5=86.
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