document.write( "Question 826169: the average age of 14 students and a teachers of a class is 17 year out of these the average age of 5 students is 14 years and that of other 9 students is 16 years then what is age of teacher \n" ); document.write( "

Algebra.Com's Answer #497912 by josmiceli(19441) $\"\"$ $\"About$

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Equation for the teachers and students:
\n" ); document.write( "Sum of all their ages = $\"+s%5B1%5D+\"$
\n" ); document.write( " $\"+s%5B1%5D+%2F+15+=+17+\"$
\n" ); document.write( " $\"+s%5B1%5D+=+17%2A15+\"$
\n" ); document.write( " $\"+s%5B1%5D+=+255+\"$
\n" ); document.write( "----------------
\n" ); document.write( "Equation for the 5 students:
\n" ); document.write( "Sum of their ages = $\"+s%5B2%5D+\"$
\n" ); document.write( " $\"+s%5B2%5D++%2F+5+=+14+\"$
\n" ); document.write( " $\"+s%5B2%5D+=+70+\"$
\n" ); document.write( "---------------------
\n" ); document.write( "Equation for the 9 students:
\n" ); document.write( "Sum of the ages = $\"+s%5B3%5D+\"$
\n" ); document.write( " $\"+s%5B3%5D++%2F+9+=+16+\"$
\n" ); document.write( " $\"+s%5B3%5D+=+9%2A16+\"$
\n" ); document.write( " $\"+s%5B3%5D+=+144+\"$
\n" ); document.write( "--------------
\n" ); document.write( "The teacher's age is $\"+s%5B1%5D+-+%28+s%5B2%5D+%2B+s%5B3%5D+%29+\"$
\n" ); document.write( " $\"+s%5B1%5D+-+%28s%5B2%5D+%2B+s%5B3%5D%29+=+255+-+%28+70+%2B+144+%29+\"$
\n" ); document.write( " $\"+s%5B1%5D+-+%28s%5B2%5D+%2B+s%5B3%5D%29+=+255+-+214+\"$
\n" ); document.write( " $\"+s%5B1%5D+-+%28s%5B2%5D+%2B+s%5B3%5D%29+=+41+\"$
\n" ); document.write( "The teacher is 41
\n" ); document.write( " \n" ); document.write( "

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