SOLUTION: The average/mean of 6 numbers is 9. 4 of the numbers are 2, 6, 8, and 15. What is the average/mean of the two remaining numbers alone? option are 6 6.5 11.5 7.5 8

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Question 765138: The average/mean of 6 numbers is 9. 4 of the numbers are 2, 6, 8, and 15. What is the average/mean of the two remaining numbers alone?
option are
6
6.5
11.5
7.5
8

Answer by Cromlix(4381)   (Show Source): You can put this solution on YOUR website!
The average of 6 numbers is 9.
Total => 6 * 9 = 54
Four of numbers are:
2,6,8 and 15.
Total = 31
54 - 31 = 23
Average of two numbers
= 23/2 = 11.5
Hope this helps.
:-)

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