document.write( "Question 265949: A teacher is 15 years older than her student. In 15 years, the ratio of their ages will be 3:2. Find their present ages. \n" ); document.write( "

Algebra.Com's Answer #195456 by drk(1908) $\"\"$ $\"About$

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(i) T = 15 + S
\n" ); document.write( "from above we get
\n" ); document.write( "(T+15)/(s+15) = 3/2
\n" ); document.write( "by substitution we get
\n" ); document.write( "(15+S +15)/(S+15) = 3/2
\n" ); document.write( "cross multiply to get
\n" ); document.write( "2(S+30) = 3(S+15)
\n" ); document.write( "2S + 60 = 3S + 45
\n" ); document.write( "60 = S + 45
\n" ); document.write( "So, s = 15
\n" ); document.write( " and T = 30 \n" ); document.write( "

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