document.write( "Question 984160: the ratio of Binoy’s and Alisha’s present age is 5 : 6. Three years hence the ratio of their ages will be 6 : 7 respectively. What was Alisha’s age eight years ago? \n" ); document.write( "
Algebra.Com's Answer #604945 by josgarithmetic(39618)\"\" \"About 
You can put this solution on YOUR website!
\"system%28b%2Fa=5%2F6%2C%28b%2B3%29%2F%28a%2B3%29=6%2F7%29\"\r
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\n" ); document.write( "\n" ); document.write( "Goal is solve for a-8.\r
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\n" ); document.write( "\n" ); document.write( "\"b=5a%2F6\"
\n" ); document.write( "-
\n" ); document.write( "\"7%28b%2B3%29=6%28a%2B3%29\"
\n" ); document.write( "\"7b%2B21=6a%2B18\"
\n" ); document.write( "\"7b-6a=-3\"
\n" ); document.write( "\"6a-7b=3\"
\n" ); document.write( "substitute for b.
\n" ); document.write( "\"6a-7%285a%2F6%29=3\"
\n" ); document.write( "\"36a-35a=18\"
\n" ); document.write( "\"a=18\"------Current age for Alisha\r
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\n" ); document.write( "\n" ); document.write( "She was 10 years of age, 8 years ago.
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