Q: 144 (IAS/1996)

The next pair of letters in the series AZ, CX, FU, ...... is
question_subject: 
Logic/Reasoning
question_year: 
1996
question_exam: 
IAS
question_sub_subject: 
Reasoning
question_topic: 
Analytical
stats: 
0,328,96,328,16,80,0