document.write( "Question 897840: If 3rd term of an A.P is four times the first term and 6th term is 17, find the A.P \n" ); document.write( "

Algebra.Com's Answer #544435 by ewatrrr(24785) $\"\"$ $\"About$

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$\"a%5Bn%5D+=+a%5B1%5D+%2B%28n-1%29d+\"$
\n" ); document.write( " $\"a%5B3%5D+=+4a%5B1%5D+=+a%5B1%5D+%2B2d+\"$
\n" ); document.write( " $\"3a%5B1%5D+=+2d\"$ }
\n" ); document.write( " $\"a%5B1%5D+=+2d%2F3\"$ ***
\n" ); document.write( " $\"a%5B6%5D+=+17+=+a%5B1%5D+%2B+5d\"$
\n" ); document.write( " $\"a%5B1%5D+=+17-5d\"$ ***
\n" ); document.write( " $\"+2d%2F3+=+17-5d\"$
\n" ); document.write( " 2d = 51 - 15d
\n" ); document.write( " 17d = 51
\n" ); document.write( " d = 3 and $\"a%5B1%5D+=+2\"$
\n" ); document.write( "{2, 5, 8, 11, 14, 17...} \n" ); document.write( "

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