SOLUTION: the average of 5 numbers is 12. Three of the numbers are 68, 82, and 76. The remaining two numers are equal. Calculate the fourth and fifth number.

Algebra ->  Average -> SOLUTION: the average of 5 numbers is 12. Three of the numbers are 68, 82, and 76. The remaining two numers are equal. Calculate the fourth and fifth number.       Log On


   

Question 340044: the average of 5 numbers is 12. Three of the numbers are 68, 82, and 76. The remaining two numers are equal. Calculate the fourth and fifth number.

Found 2 solutions by rfer, ankor@dixie-net.com:
Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
(226+2x)/5=12
226+2x=60
2x=-166
x=-83
226-166/5=12

Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
the average of 5 numbers is 12.
Three of the numbers are 68, 82, and 76. The remaining two numbers are equal.
Calculate the fourth and fifth number.
:
Not possible if the two grades were 0, then
%2868%2B82%2B76%29%2F5 = 45.2 greater than 12 by a lot