SOLUTION: The average of four numbers is 18. If one of the four numbers, 25, is taken away, what is the average of the remaining three numbers?

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Question 231746: The average of four numbers is 18. If one of the four numbers, 25, is taken away, what is the average of the remaining three numbers?
Answer by ankor@dixie-net.com(12692) About Me  (Show Source):
You can put this solution on YOUR website!
The average of four numbers is 18.
If one of the four numbers, 25, is taken away, what is the average of the remaining three numbers?
:
Let x = the average of the remaining 3 numbers
:
%283x%2B25%29%2F4 = 18
3x + 25 = 4(18)
3x = 72 - 25
3x = 47
x = 47%2F3
x = 152%2F3 is the average of the remaining 3 numbers