SOLUTION: If my score is 75 out of 100 what score do I need to maintain at least an average of 81?

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Question 796229: If my score is 75 out of 100 what score do I need to maintain at least an average of 81?
Answer by psbhowmick(878) About Me  (Show Source):
You can put this solution on YOUR website!
I assume that you are asking for what score do you need out of next 100 so as to get an average of 81.

Suppose that you need to score x out of 100 to have an overall average of 81.

So your overall average is calculated as

%2875%2Bx%29%2F2=81
x=162-75=87

So you need to score 87.