If the pth term of an A.P. is `q` and the qth term is `p` , then find its rth term.

If the p^(th) term if an A.P. is q and the q^(th) term of an A.P is p then the r^(th) term is

The pth term of an A.P. is a and qth term is bdot Then find the sum of its (p+q) terms.

In a certain A.P., 5 times the 5th term is equal to 8 times the 8th terms then find its 13th term.

If p^(th) term of an AP is q and q^(th) term is p, find (p+q)^(th) term.

The mth term of a H.P is n and the nth term is m . Proves that its rth term is m n//rdot

If the sum of first p terms of an A.P. is equal to the sum of the first q terms, then find the sum of the first (p + q) terms.

If 6 times of 6th term of an A.P. is equal to 7 times term, then the 13th term of the A.P. is

If m times the m^(th) term of an A.P. is equal to n times its n^(th) term, then show that the (m + n)th term of the A.P. is zero.

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

If 10^(th) term and the 18^(th) term of an A.P. are 25 and 41 respectively, then find the 38^(th) term.