The first and the last terms of an A.P. are 4 and 81 respectively . If the common difference is 7, how many terms are there in the A.P. and what is their sum?

The first and the last terms of an A.P. are 17 and 350 respectively. If the common difference is 9, then how terms are there in the A.P. ?

The first and the last terms of an A.P. are 17 and 350 respectively. If the common difference is 9, how many terms are there and what is their sum ?

The first and the last terms of an A.P. are 34 and 700 respectively. If the common difference is 18, how many terms are there and what is their sum?

The first and the last terms of an A.P. are 17 and 350 respectively .if the common difference is 9 , how many terms are there and what is their sum ?

The first and the last terms of an A.P. are 17 and 350 respectively. If the common difference is 9, how many terms are there and what is their sum?

The first and the last terms of an A.P. are 17 and 350 respectively. If the common difference is 9, how many terms are there and what is their sum?

The first and the last terms of an A.P are 17 and 350 respectively. If the common difference is 9, how many terms are there and what is their sum ?

The first and the last terms of an A.P. are 17 and 350 respectively. If the common difference is 9, how many terms are there and what is their sum?

The first and the last term of an A.P are 17 and 350 respectively. If the common difference is 9, how many terms are there and what is their sum ? OR Find the sum of first 51 terms of an A.P whose 2nd term and 3rd term aer 14 and 18 respectively.

The first and the last terms of an AP are 17 and 350 respectively . If the common difference is 9, how many terms are there and what is their sum?