If the first two terms of an A.P. Are -3 and 4, then what is the 21st term of this A.P. ?

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.

The sum oif the first ten terms of an A.P. is equal to 155, and the sum of the first two terms of a G.P. is 9. Find these progressionsif the first term of the A.P. equals the common ratio of the G.P. and the 1st term of G.P. equals the common difference of A.P.

The sum oif the first ten terms of an A.P. is equal to 155, and the sum of the first two terms of a G.P. is 9. Find these progressionsif the first term of the A.P. equals the common ratio of the G.P. and the 1st term of G.P. equals the common difference of A.P.

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.

The 11th term and the 21st term of an A.P are 16 and 29 respectively,then find the 41st term of that A.P.

The first term of an A.P. is 5 and its 100th term is - 292. Find the 50th term of this A.P.

The first term of an A.P. is 5 and 100th term is - 292. Find the 50th term of the A.P.

The 11th term of an A.P. is 16 and the 21st term is 29 . Find the 16th term of this A.P.

The first four terms of an A.P. are a, 9, 3a - b, 3a + b . The 2011^(th) term of the A.P. is

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