document.write( "Question 803183: when i was 2yrs old my sister was half my age .now i'm 100yrs old how old is my sister now? \n" ); document.write( "
Algebra.Com's Answer #484157 by thejackal(72)\"\" \"About 
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when I was 2, S was 2/2 = 1
\n" ); document.write( "so the age difference between I and Sister is 1 year
\n" ); document.write( "so if I is 100 then S = 100-1 = 99
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