document.write( "Question 252669: george is 3years older than his sister janet .in 7years she will be 6\7 of his age . how old is she? \n" ); document.write( "
Algebra.Com's Answer #184691 by palanisamy(496)![]() ![]() ![]() You can put this solution on YOUR website! Let the age of Janet be x. \n" ); document.write( "Given,George is 3 years older than his sister Janet. \n" ); document.write( "So the age of George = x+3 \n" ); document.write( "After seven years, their ages will be x+7 and (x+3)+7 \n" ); document.write( "Given, (x+7)/(x+10) = 6/7 \n" ); document.write( " 7(x+7) = 6(x+10) \n" ); document.write( " 7x+49 = 6x+60 \n" ); document.write( " 7x-6x = 60-49 \n" ); document.write( " x = 11 \n" ); document.write( "Therefore, the age of Janet is 11 years \n" ); document.write( " \n" ); document.write( " |