Question

The no. of terms in A.P 7, 13, 9.... 205 is
​

Answer 1

Answer:

NO. OF TERM (n) is 34.

Step-by-step explanation:

Given : In an AP,

1st term (a) = 7.

common difference (d) = 13-7.

= 6.

An = last term (l) = 205.

To Find : value of n.

so, let's find it,,

An = a+(n-1)d

:205 = 7+(n-1)6.

: 205-7 = (n-1)6.

: 198/6 = n-1.

: 33 = n-1.

: 33+1 = n.

: 34 = n.

HOPE IT WILL BE HELPFUL!!..