document.write( "Question 677536: When I was 2 years old, my sister was half of my age. Now I'm 80 years old, how old is my sister? \n" ); document.write( "
Algebra.Com's Answer #420978 by partha_ban(41)\"\" \"About 
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When I was 2 years, age of my sister = \"2+%2A+%281%2F2%29\" = 1 year
\n" ); document.write( "So, my sister is 2 - 1 = 1 year younger than me.
\n" ); document.write( "Now my age is 80 years.
\n" ); document.write( "So, my sister's age is = 80 - 1 = 79 years.
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