document.write( "Question 695458: The ratio of the ages of Rajesh to that of Ramesh is 5 : 8. After 10 years the new ratio of their ages will be 7 : 10. What is the age of Ramesh at present? \n" ); document.write( "
Algebra.Com's Answer #428498 by lwsshak3(11628)\"\" \"About 
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The ratio of the ages of Rajesh to that of Ramesh is 5 : 8. After 10 years the new ratio of their ages will be 7 : 10. What is the age of Ramesh at present?
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\n" ); document.write( "let y=Rajesh's present age
\n" ); document.write( "let x=Ramesh's present age
\n" ); document.write( "y/x=5/8
\n" ); document.write( "y=5x/8
\n" ); document.write( "..
\n" ); document.write( "After 10 years:
\n" ); document.write( "y+10=Rajesh's age
\n" ); document.write( "x+10=Ramesh's age
\n" ); document.write( "(y+10)/(x+10)=7/10
\n" ); document.write( "7x+70=10y+100
\n" ); document.write( "7x+70=10(5x/8)+100
\n" ); document.write( "7x+50x/8=30
\n" ); document.write( "56x+50x=240
\n" ); document.write( "6x=240
\n" ); document.write( "x=40
\n" ); document.write( "Ramesh's present age=40\r
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