If the terms of an AP are chosen at regular intervals ; then they form an AP.

General term of an AP

Sum of first terms of an A.P. is 9 less than the sum of next 3 terms of the same A.P. and second term is 2 then 4^(th) term of that A.P. is :

If the sum of 4 terms of an AP is 72 then find the AM of the AP

If 7th term of an A.P. is 9 and 9th term of the A.P. is 7, then 20th term of the A.P. is

If the 10^(th) term of an AP is 0 , then find the ratio of the 27^(th) term and the 15^(th) term of the AP.

The 1 st,4 th and 13 th terms of AP are in G.P. The first term is 3. Find the A.P.

If 20 th term of an AP is and 40 th term of the 40 same AP is then the sum of 800 terms is

If the 5th term and the 14 th term of an AP are 35 and 8 respectively, then find the 20 th term of the AP.

The sum of the 5 ^(th) and the 7^(th) terms of an A.P. is 52 and then 10^(th) term is 46. Find the A.P..