The 11th term of an A.P. is 80 and the 16th term is 110. Find the 31st term.

The 5th term of an A.P. is 11 and the 9th term is 7. Find the 16th term.

The 11^(th) of an A.P. is 80 and the 16^(th) term is 110 . Find the 30^(th) term

The 6th term of an AP. is 16 and the 14th term is 32. Determine the 36th term.

If the third term of an A.P. is 5 and the seventh terms is 9, find the 17th term.

If the 8th term of an A.P. is 31 and the 15th term is 16 more than the 11th term, find the A.P.

The sum of the 5th and the 7th terms of an AP is 52 and the 10th term is 46. Find the AP.

The 4th term of a G.P. is 16 and 7th term is 128. Find the first term and common ration of the series.

The sum of15 terms of an A.P. is zero and its 4th term is 12. Find its 14th term.

If the 8th term of an A.P. is 37 and the 15th term is 15 more than the 12th find the A.P. Also find the sum of first 20 terms of this A.P.