Question 1188670
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Mar is 4 years older than Ron. Chan is twice as old as Mar. The sum of
their 3 ages is 8 times Ron’s age. How old is Ron now?
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            The setup in the post by @josgarithmetic is  INCORRECT.

            I came to solve the problem correctly.



<pre>
Let x be the Ron's age.

then the Mar's age is (x+4) years;  Chan's age is 2(x+4).


An equation for the total age is

    x + (x+4) + 2(x+4) = 8x.


Simplify and find x

    x + x + 4 + 2x + 8 = 8x

          4 + 8        = 8x - x - x - 2x

            12         = 4x

             x         = 12/4 = 3.


<U>ANSWER</U>.  Ron is 3 years old.
</pre>

Solved &nbsp;(correctly).