SOLUTION: The mean of 4 test scores is 90. What is the sum of the scores

Algebra ->  Average -> SOLUTION: The mean of 4 test scores is 90. What is the sum of the scores       Log On


   

Question 746964: The mean of 4 test scores is 90. What is the sum of the scores
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
Let S = sum of all the scores

If the mean is 90 and there are 4 tests, then

S/4 = 90

4*(S/4) = 4*90

S = 360

So the sum of the scores is 360