SOLUTION: When you were 40 years old, your sister was half of your age. Now you are 80 years old, how old is your sister ??

SOLUTION: When you were 40 years old, your sister was half of your age. Now you are 80 years old, how old is your sister ??

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Question 814571: When you were 40 years old, your sister was half of your age. Now you are 80 years old, how old is your sister ??
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
60
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