Question

Find 8th term of the A.P. 117, 104, 91, 78, ...

Answer 1

In this problem, we are given different A.P. and we need to find the required term of that A.P.

8^th term of the A.P. 117, 104, 91, 78, ...

Here

First term (a) = 117

Common difference of the A.P. (d) = 104 - 117

= -13

Now as we know

`a_n = a + (n -1)d`

So for 8th term

`a_8 = a + (8 - 1)d`

= 117 + (7)(-13)

= 117 - 91

= 26

Therefore, the 8^th term of the given A.P. is `a_8 = 26`