If sum of n terms of AP 2, 5, 8, .... is 155 then the number of terms is

The first term of an AP is -5 and the last term is 45. If the sum of the terms of the AP is 120, then find the number of terms and the common difference.

The first term of an AP is - 5 and the last term is 45 . If the sum of the terms of the AP is 120 , then find the number of terms and the common difference.

If the sum to 2n terms of an Ap 2,5,8,11 , …. is equal to the sum to n terms of an AP 57,59,61,63, …. , then n is equal to

If the sum to 2n terms of the A.P. 2, 5, 8, 11, .... is equal to the sum to n terms of 57, 59, 61, 63, ....., then n=

If the sum of the first 2n terms of the A.P. 2, 5, 8, ..., is equal to the sum of the first n terms of A.P. 57, 59, 61. .... then n equals

If the sum of the first 2n terms of the A.P. 2, 5, 8, ..., is equal to the sum of the first n terms of A.P. 57, 59, 61, ..., then n equals

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 sum of n terms of an A.P. is 3n^(2) + 5n . Find the number of the term which is equal to 152.

If the sum of the first 2n terms of the AP 2, 5, 8 ....is equal to the sum of first n terms of the AP 57, 59, 61, ..., then what is the value of n?

The sum of n terms of an A.P. is 3n^(2)+5 . The number of term which equals 159, is