" A the sum of "23" terms of the AP "17,12,7,2,-3,

Find the sum of 23 terms of the AP 17,12,7,2,-3,….

Find the sum of 23 terms of the AP 5,9,13,17,……

Is 309 a term of the AP 11, 17, 23….?

Is 319 a terms of the AP 11,17,23, 29,35,…, ?

Find 23rd term of the AP 7, 3, 1, -1, .... ,-3.

Find the nth term and the sum to n terms of the series 1.2+ 2.3 +3.4 + ...

If the sum of 12 th and 22nd terms of an AP is 100 then the sum of the first 33 terms of the AP is

If the sum of 12^(th) and 22^(nd) terms of an A.P is 100, then the sum of the first 33 terms of the A.P is

Find the 23rd term of the A.P.7,5,3,1,...