document.write( "Question 1118234: An ap consists 25 terms, of which 4th term is 4 and 22nd term is 5.what would be the 19th term? \n" ); document.write( "
Algebra.Com's Answer #733513 by greenestamps(13200)\"\" \"About 
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\n" ); document.write( "I always encourage students to try working problems informally if at all possible. If you can do that, solving the problem by formal mathematical methods will make more sense.

\n" ); document.write( "Let's do a little mental arithmetic here to find the answer.

\n" ); document.write( "From the 4th term to the 22nd term is 18 terms; the difference between the 4th term and 22nd term is 1. So the common difference between terms has to be 1/18.

\n" ); document.write( "The 19th term is 3 terms before the 22nd term, which is 5: 5 - 3(1/18) = 5 - 3/18 = 5 - 1/6 = 4 5/6 or 29/6.
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