SOLUTION: Arthur is 16 years old and his sister, Tendai, is 10 years old. How many years ago was Authur twice as old as Tendai

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Question 1160639: Arthur is 16 years old and his sister, Tendai, is 10 years old. How many years ago was Authur twice as old as Tendai

Answer by Alan3354(69443) About Me  (Show Source):
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Arthur is 16 years old and his sister, Tendai, is 10 years old. How many years ago was Authur twice as old as Tendai
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The difference is 6 years.
---> when they were 6 & 12.