Question

In an arithmetic progression, if an = 2n +1, then the common differene
of the given progression is
(A) 0
(B) 1
ans
(C) 2
(D) 3​

Answer 1

Answer:

The correct answer is D

Hope this answer will help you.

Answer 2

$a_n=2n+1\\\\a_1=2(1)+1\\\\a_1=3\\\\a_2=2(2)+1\\\\a_2=5\\\\a_2-a_1=d\\\\d=5-3\\\\d=2$

Hence , option (C) is correct .