Question:
Find the $8^{\text {th }}$ term from the end of the AP $7,9,11, \ldots, 201 .$
Solution:
To find: $8^{\text {th }}$ term from the end
$d=9-7$
$d=2$
Also
$201=7+n \times 2-2$
$n=98$
So $8^{\text {th }}$ term from end will be
$7+90 \times 2$
$\Rightarrow 187$