document.write( "Question 773541: I am 16 years old. i'm also 4 times older than my sister. after many years i'm will be 2 times older than my sister. how old i am? \n" ); document.write( "
Algebra.Com's Answer #471635 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! I am 16 years old. i'm also 4 times older than my sister. after many years i'm will be 2 times older than my sister. how old i am? \n" ); document.write( "---------- \n" ); document.write( "4 times older = 5 times as old. \n" ); document.write( "--> she's 3.2 years old. \n" ); document.write( "The difference is 12.8 years, and will remain constant. \n" ); document.write( "--> 2 times older = 3 times as old \n" ); document.write( "your age + 12.8 = 3*your age \n" ); document.write( "After 6.4 years. \n" ); document.write( "========================== \n" ); document.write( "If 4 times older = 4 times as old, then how much is 1 times older, or a 100% increase? \n" ); document.write( "They are not the same. \n" ); document.write( " |