SOLUTION: Five numbers have an average of 16. If the first four numbers have a sum of 68, what is the fifth number?

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Question 1131709: Five numbers have an average of 16. If the first four numbers have a sum of 68, what is the fifth number?
Answer by rothauserc(4718) About Me  (Show Source):
You can put this solution on YOUR website!
let x be the 5th number
:
(68+x)/5 = 16
:
68+x = 80
:
x = 12
:
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the 5th number is 12
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