document.write( "Question 763091: 5 years ago Lakshmi's mother was five timers her age.If her mother is now thrice as old as her, find their present ages? \n" ); document.write( "
Algebra.Com's Answer #464585 by ramkikk66(644)\"\" \"About 
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Let Lakshmi's age be x years
\n" ); document.write( "Let her mother's age be y years.\r
\n" ); document.write( "\n" ); document.write( "Given: Mother is currently 3 times as old as Lakshmi.\r
\n" ); document.write( "\n" ); document.write( "So, \"y+=+3%2Ax\" ------ 1\r
\n" ); document.write( "\n" ); document.write( "Also given: 5 years ago, mother was 5 times as old as Lakshmi\r
\n" ); document.write( "\n" ); document.write( "So, \"5%2A%28x-5%29+=+y-5\"
\n" ); document.write( " or 5*x - 25 = y-5
\n" ); document.write( " or \"5%2Ax-y+=+20\" -------- 2\r
\n" ); document.write( "\n" ); document.write( "Substituting y = 3x in eqn. 2, we get:\r
\n" ); document.write( "\n" ); document.write( "5*x - 3*x = 20 or 2*x = 20\r
\n" ); document.write( "\n" ); document.write( "So, x = 10 years and y = 3*x = 30 years.\r
\n" ); document.write( "\n" ); document.write( "So, Lakshmi's present age = 10 years
\n" ); document.write( "Her mother's present age = 30 years. \r
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