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 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. 8 c. 6 d. 7

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 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

Fill in the blanks so as to make each of the following statements true : The first and the last term of an AP are 1 and 11. If the sum of all its terms in 36 , then the number of terms is .........

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 - 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.

The first and the last terms of an A.P are 17 and 9 . If common difference is -2 , then find the number of terms and their sum.