Question

There are 15 terms in an arithmetic progression. Its first term is 5 and their sum is 390. The middle term is

(A) 23 

(B) 26 

(C) 29 

(D) 32

Answer 1

Correct option (B) 26

According to the given condition

15/2[10 + 14 x d] = 390 ⇒ d = 3

Hence, middle term, that is, 8^th term is given by

5 + 7 x 3 = 26