We need to set up a system, rather than a single equation, because there are two variables involved.
The first equation represents the fact that the two numbers are in a 3:2 ratio:

The second equation represents the fact that their sum is 35:

So, we have the following system:

Using the expression for x in the first equation, the second one becomes

which implies

7, 5, 1, 6, 2 Mean Absolute Deviation = 2.16
3, 6, 3, 2, 1 Mean Absolute Deviation = 1.2
Answer:
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Step-by-step explanation:
Yes your answer is correct