document.write( "Question 864946: The ratio of their ages of Elton and David is 3:5. In 6 years time the ratio of their ages will be 3:4. How old is David?
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Algebra.Com's Answer #521392 by dkppathak(439)\"\" \"About 
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The ratio of their ages of Elton and David is 3:5. In 6 years time the ratio of their ages will be 3:4. How old is David?
\n" ); document.write( "let present ratio of age ofelton and david age is =3x/5x
\n" ); document.write( "as per given conditions after 6 yrs
\n" ); document.write( "3x+6/5x+=3/4
\n" ); document.write( "4(3x+6)=3(5x+6)
\n" ); document.write( "12x + 24=15x +18
\n" ); document.write( "12x-15x=18-24
\n" ); document.write( "-3x=-6
\n" ); document.write( "x=2
\n" ); document.write( "age of elton is 3x=3x2=6yrs
\n" ); document.write( "age of david is 5x=5x2=10\r
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\n" ); document.write( "\n" ); document.write( "Answer David age present is 10 yrs
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