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Can someone please explain this question. Please give a step by step explanation

Can someone please explain this question. Please give a step by step explanation-example-1
User Odradek
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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= Total/number of numbers

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 =270/6=45

User Currarpickt
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