Question

find the 9th term from the end (towards the first term) of the A.P. 5,9,13,....185.

Answer 1

Answer:

ANS IS 153

Formula Tn= l-(n-1)d.

Here,l=185,d=4,n=?,a=5

tn=a+(n-1)d

185=5+(n-1)4

180/4=n-1

n=46.

T9=185-(9-1)4

=185-32

=153

Tn=153