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Meanof the six numbers is 2706=45
Explanation:
There are 3 different sets of numbers involved here.
A set of six, a set of two and the set of all eight.
Each set has its own mean.
mean=Totalnumber of numbers OR M=TN
Note that if you know the mean and how many numbers there are, you can find the total.
T=M×N
You can add numbers, you can add totals, but you may not add means together.
So, for all eight numbers: The total is 8×41=328
For two of the numbers: The total is 2×29=58
Therefore the total of the other six numbers is 328−58=270
The mean of the six numbers =2706=45