In the following question, select the missing number from the given series. 144, 139, 133, 128, ?, 117, 111 Options:

Answer: C. 122

Official answer key verified. Detailed explanation coming soon.

Source: SSC CHSL (Tier-1) 2017 Online Exam Paper held on 13 March 2018, Afternoon Shift (General Intelligence) — SSC-published paper with official answer key, via sscportal.in · official-answer-key