document.write( "Question 807790: the ratio of present ages of daughter and her mother is 2:9. mother's age at the time of birth of daughter is 28. find the present age of mother. \n" ); document.write( "
Algebra.Com's Answer #486547 by mananth(16946)\"\" \"About 
You can put this solution on YOUR website!
let the common multiple be x
\n" ); document.write( "then \r
\n" ); document.write( "\n" ); document.write( "daughter's age = 2x\r
\n" ); document.write( "\n" ); document.write( "mom's age = 9x\r
\n" ); document.write( "\n" ); document.write( "when daughter was born\r
\n" ); document.write( "\n" ); document.write( "9x-2x=28\r
\n" ); document.write( "\n" ); document.write( "7x=28
\n" ); document.write( "/7
\n" ); document.write( "x=4\r
\n" ); document.write( "\n" ); document.write( "daughter's age = 2x = 2*4 =8 years\r
\n" ); document.write( "\n" ); document.write( "Mom's age = 9x = 9*4=36 years
\n" ); document.write( "
\n" );