Question

The sum of n terms of an arithmetic sequence is 949494. The first term is 111 and the common difference is 151515.
Find the number of terms, n, in the arithmetic sequence.

Answer 1

Step-by-step explanation:

Here the a=111

d=151515

an=949494

WKT. an=a + (n-1)d

949494= 111 +(n-1)151515

949383=(n-1)151515

BUT the answer is no no. is there with an 949494 as it is not divisible by d