The 5th term of an A.P. is three times the first term. Prove that its 7th term will be two times the 3rd term.

(i) 6 times the 6th term of an A.P. is equal to 10 times the 10th term. Prove that its 16th term will be zero. (ii) 10 times the 10th term of an A.P. is equal to 15 times its 15th term. Find its 25th term.

The 4th term of an A.P. is equal to 3 times the first term and 7^(th) term exceeds twice the 3rd term by 1. Find the first term and common difference.

The 4th term of an A.P. is three times the first and the 7th term exceeds twice the third term by four. Find the first term and the common difference.

The 7^(th) term of an A.P. is 5 times the first term and its 9^(th) term exceeds twice the 4^(th) term by 1 . The first term of the A.P. is

The 4 th term of an A.P is equal to the 3 xx ofthe first term and 7 th term exceeds twice the 3 rd term by 1. Find first term and common difference

The 4th term of A.P. is equal to 3 times the first term and 7th term exceeds twice the third term by 1. Find its nth term.

The 19th term of an A.P. is equal to three times its 9th term.If its 9th term is 19, find the A.P.

4th term of an A.P. is equal to 3 times its first term and 7th term exceeds twice the 3rd term by 1. Find the first term and the common difference.

The 9th term of an AP is equal to 6 times the second term. If its 5th term is 22 find the AP.

The 7th term of a G.P. is 8 times the 4th term and the 5th term is 48. Find the G.P.