The third term of an A.P. is 7 and the seventh term exceeds three times the third term by 2. Find the first term, the common difference and the sum of first 20 terms.

The third term of an A.P.is 7 and the seventh term exceeds three xx the third term by 2. Find the first term,the common difference and the sum of first 20 terms.

The third term of an AP is 7 and the 7^(th) term exceeds 3 times the third term by 2. Find the first term and the common difference and the sum of first 20 terms.

The third term of an arithmetical progression is 7, and the seventh term is 2 more than 3 times the third term. Find the first term, the common difference and the sum of the first 20 terms.

The 4th term of an A.P.is three xx the first and the 7th term exceeds twice the third term by 1. Find the first term and the common difference.

The third term of an A.P. is 7 and its seventh term is 2 more than three times the third term. Find the sum of first 20 terms.

The 4t h term of an A.P. is three times the first and the 7t h term exceeds twice the third term by 1. Find the first term and the common difference.

The 4 th term of an A.P.is three xx the first and the 7 th term exceeds twice the third term by four.Find the first term and the 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 third term of an A.P. is 8. and the ninth term of the A.P. exceeds three times the third term by 2. Find the sum of its first 19 terms.

If third term of an A.P. is 18 and seventh term is 30, find the series