SOLUTION: 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?

Question 1188670: 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?

Found 2 solutions by josgarithmetic, ikleyn:
Answer by josgarithmetic(39618)   (Show Source): You can put this solution on YOUR website!

Mar r+4 Ron r Chan 2r+8 SUM 8r

NOT THIS-------------------- Mar r+3 Ron r Chan 2r+6 SUM 8r misread part of description

Answer by ikleyn(52790)   (Show Source): You can put this solution on YOUR website!
.
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?
~~~~~~~~~~~~~~~~~

            The setup in the post by @josgarithmetic is INCORRECT.
            I came to solve the problem correctly.

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. ANSWER. Ron is 3 years old.

Solved (correctly).

RELATED QUESTIONS
Ron is 1/2 as old as Sam, who is three times as old as Ted. The sum of their ages is 55.... (answered by richwmiller)
Jon is three times as old as Cal, while Ron is 12 years older that Cal. Eight years from... (answered by ikleyn,josgarithmetic)
Harry is 1/3 as old as Ron and 8 years younger than Hermoine, find the sum of their ages... (answered by satyareddy22)
hary is 1/3 as old as ron and 8 years younger than hermoine. find the sum of their ages... (answered by josgarithmetic)
hary is 1/3 as old as ron and 8 years younger than hermoine. find the sum of their ages... (answered by greenestamps)
Harry is one-third as old as Ron and 8 years younger than hermione.If the sum of their... (answered by ikleyn)
Twenty-two years ago, Mark was twice as old as Bren and eight times as old as Ron. The... (answered by ikleyn)
Harry is 1/3 old as Ron and eight years younger than Hermoine. FInd the some of their... (answered by satyareddy22)
Dianne is thrice as old as Ron. The sum of their ages is 24. How old is... (answered by josmiceli)