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1/10 Averages

What is the average of all of the integers from 8 to 44? 22, 24, 26, 28 or 30?

There is a formula for determining the average of a long series of consecutive numbers.
The first part of this formula consists of adding the first and last numbers.

The sum of the first/last numbers is 52, and the answer options are
22-24-26-28-30. What would the second part of the formula most likely be?

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hamlynsays...

To average a long series of consecutive numbers use this formula:

Average=(X1 +Xn)/2

(8+44)/2

52/2=26

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