Question

(c) 38
(d) 185.
। किसी AP में यदि a = 7-2, d=3:6 एवं 1,= 72 तब n का मान है :
(b) 3
(a) ।
ca​

Answer 1

Answer:

what is your exactly question friend ?

I can't understand this .

plz explain the question perfectly.