SOLUTION: Erin is 3 times as old as her brother auston. If the difference in their ages is 1 years, how old is each of them

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Question 1137591: Erin is 3 times as old as her brother auston. If the difference in their ages is 1 years, how old is each of them
Answer by josgarithmetic(39614) About Me  (Show Source):
You can put this solution on YOUR website!
Erin, 3y
Auston, y
3y-y=1, "differernce in their ages is 1 years"
2y=1
y=1%2F2


Erin is 18 months old, and Auston is 6 months old.