4. If the first and last terms of an A.P. are 1 and 11 respectively and the sum of its terms is 30.find the number of terms in the A.P.

The first and last terms of an A.P. are 1 and 7 . If the sum of its terms is 36 , then the number of terms will be

The first and last terms of an A.P. are 1 and 7 . If the sum of its terms is 36 , then the number of terms will be

The first and last term of an A.P. are 1 and 11. If the sum of its terms is 36, then the number of terms will be

The first and last terms of an A.P. are - 7 and 233 and the sum of the A.P. is 9153. Find the number of terms in the A.P.:

The first term and last term of an A.P. are respectively 1 and 157. If the sum is 3160 find the number of terms.

Suppose that the first and the 5^(th) terms of an A.P. are-14 and 2 respectively If the sum of the terms of the A.P is 40, find the number of terms in the A.P.

The first and last terms of an A.P. are 1 and 11. If the sum of its terms is 36 then the number of terms will be a. 5 b. 8 c. 6 d. 7

The first term and the last term of an A.P. are 2 and 29, respectively. If the sum of the series is 155, find the number of terms and common difference.

The first and last terms of an A.P. are 1 and 11. If the sum of its terms is 36, then the number of terms will be (a) 5 (b) 6 (c) 7 (d) 8

The first and last terms of an A.P. are 1 and 11. If the sum of its terms is 36, then the number of terms will be (a) 5 (b) 6 (c) 7 (d) 8