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Source: GMAT Prep
If the eleven consecutive integers are listed fro least to greatest, what is the average (arithmetic mean) of eleven integers?
1) The average of the first nine integers is 7
2) The average of the last nine integers is 9
The OA is D
If the eleven consecutive integers are listed fro least to greatest, what is the average (arithmetic mean) of eleven integers?
1) The average of the first nine integers is 7
2) The average of the last nine integers is 9
The OA is D