SOLUTION: When I was 10 my sister was half my age, now I'm 20. How old is my sister?

Question 881316: When I was 10 my sister was half my age, now I'm 20. How old is my sister?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
When I was 10 my sister was half my age
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So your sister is 5 years younger than you.
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now I'm 20. How old is my sister?
Ans: 20-5 = 15 yrs
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Cheers,
Stan H.
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