SOLUTION: After five tests Allisons average score was 88. After six tests her average score had increased to 90. What was her score on the sixth test?

SOLUTION: After five tests Allisons average score was 88. After six tests her average score had increased to 90. What was her score on the sixth test?

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Question 1068346: After five tests Allisons average score was 88. After six tests her average score had increased to 90. What was her score on the sixth test?

Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
average=total/n
total=n*average
88*5=440 points after 5 tests
after 6 average is 90, so total is 540
She got a 100 on the sixth test, 540-440.
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