Eden's mom is twice as old as Eden, who is twice as old as Devin. If Devin is 12 years old, what's the average age of the three?
How old is Eden? ** If Devin is 12 years old, then Eden is 2 * 12 years = 24 years old.
How old is Eden's mom? ** Since Eden's mom two times older than Eden, her age is 24 years * 2 = <<24*2=48>>48 years.
How old are the three? ** In total, they have 48 years + 24 years + 12 years = <<48+24+12=84>>84 years
What is the average age of the three? ** The average age for the three is 84 years / 3 people = <<84/3=28>>28 years/person
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