Q: 149 (IAS/1994)

In the sequence 462, 420, 380, X, 306. X stands for
question_subject: 
Logic/Reasoning
question_year: 
1994
question_exam: 
IAS
question_sub_subject: 
Reasoning
question_topic: 
Analytical
stats: 
0,840,272,104,840,120,48