SOLUTION: if the average of 5 consecutive numbers is 13, what is the average of the first 4 of these integer?

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Question 1101688: if the average of 5 consecutive numbers is 13, what is the average of the first 4 of these integer?

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
if the average of 5 consecutive numbers is 13, what is the average of the first 4 of these integer?
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The numbers are 11, 12, 13, 14 & 15