# The next pair of letters in the series AZ, CX, FU, ———- is

(a) JQ

(b) KP

(c) IR

(d) IV

**Answer: (a) JQ**

**Explanation:-**

A + 2 = C & opposite place value of A = Z,

C + 3 = F & opposite place value of C = X,

Same as,

F + 4 = J & opposite place value of J = Q.

Hence, the correct answer is option (a) JQ.