SOLUTION: The mean of ten positive numbers is 16 when another number is added, the mean becomes 18.find the eleventh number

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Question 1152844: The mean of ten positive numbers is 16 when another number is added, the mean becomes 18.find the eleventh number
Answer by josgarithmetic(39621) About Me  (Show Source):
You can put this solution on YOUR website!
%2810%2A16%29%2F10=16, the first ten numbers as if all were each 16

%2810%2A16%2Bn%29%2F11=18, the eleventh number is n.
Solve.




n=38