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 :

7th term of an A.P. is 40. then the sum of the first 13 terms is

The sum of the first p terms of an A.P. is q and the sum of the first q terms of the same A.P. is p. Find the sum of the first (p+q) terms of the A.P.

7^(th) term of an A.P. is 40. Then, the sum of first 13 terms is

The sum of the first five terms of an A.P. and the sum of the first seven terms of the same A.P. is 167. If the sum of first 10 terms of this A.P. is 235, find the sum of its first twenty terms.

If the sum of first 3 terms of an A.P. is 33 and their product is 1155. Then the 11^(th) term of the A.P. Is

If the sum of m terms of an A.P, is equal to the sum of n terms of the A.P ., then the sum of (m + n) terms is

The sum of the 4th and the 8th terms of an A.P. is 24 and the sum of the 6th and the 10th terms of the same A.P. is 44. Find the first three terms of the A.P.

If sum of first 20 terms of an A.P. is equal to sum of first 30 terms of the A.P. then sum of the first 50 terms of the A.P. is

The sum of first 20 terms of an A.P. is one third of the sum of next 20 term. If first term is 1, find the sum of first 30 terms of this A.P.

If the sum of first 75 terms of an A.P. is 2625, then the 38^(th) term of the A.P. is