document.write( "Question 522079: The sum of ages of a woman and her daughter is 46 years in 4 years time, the ratios of their age will be 7:2, find the present age \n" ); document.write( "
Algebra.Com's Answer #346703 by umnikmo(75)![]() ![]() ![]() You can put this solution on YOUR website! X-present age of the woman \n" ); document.write( "Y-present age of the daughter\r \n" ); document.write( "\n" ); document.write( "X+Y=46 => X=46-Y (1) \n" ); document.write( "(X+4)/(Y+4)=7/2 => 2(X+4)=7(Y+4) => 2X+8=7Y+28 => X=(7Y+20)/2 (2)\r \n" ); document.write( "\n" ); document.write( "NOW (1)=(2):\r \n" ); document.write( "\n" ); document.write( "46-Y=(7Y+20)/2 \n" ); document.write( "92-2Y=7Y+20 \n" ); document.write( "72=9Y \n" ); document.write( "Y=8 \n" ); document.write( "X=46-8=38\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |