Source: Revised GRE PDF 1st Ed. Section 5: Math; #23 (p. 79)

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The average (arithmetic mean) of the 11 numbers

The average (arithmetic mean) of the 11 numbers in a list is 14. If the average of 9 of the numbers in the list is 9, what is the average of the other 2 numbers?

1 Explanation

2

Gravatar Chris Lele, Magoosh Tutor

Sep 26, 2012 • Comment

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