Question
What should come in place of the question mark (?) in the given series?
7 9 13 19 27 37 ?
Asked in RRB Group D · 2025
Series · Logical Reasoning
Exam PYQ4 Options
Exam Tip
If the differences are changing regularly then continue that pattern. For example, gaps of −13, −11, −9, −7 shows decreasing odd number subtraction.
Correct AnswerCorrect option for this question
Learn Series in 60 Seconds
Use this 60-second lesson to understand the sequence and quickly solve addition-based missing number questions.
Everything you need to learn, practice & excel — in one place.
Video-Based Study Material
PYQ-Based Quizzes
1,000+ Informative Audiobooks
300+ Full-Length Mock Tests
Daily Current Affairs
5,000+ PYQs
Questions Asked from Series in Previous Exams
See how many previous-year questions are mapped to this exact video topic across major government exams.
14UPSC Questions Asked in These Years:2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2020, 2021, 2022, 2023, 2024, 2026
10SSC Questions Asked in These Years:2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026
8Railways Questions Asked in These Years:2016, 2018, 2020, 2021, 2022, 2024, 2025, 2026
14State PSC Questions Asked in These Years:2004, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025
46 exam questions have been mapped to this exact video topic, with the highest frequency in UPSC, State PSC and SSC.
2-Minute Revision Notes
Revise Series and Its Related Concepts
Use the mapped visual notes for a quick concept recap.
Explore More Questions
Continue practising by chapter, topic and related subjects.
One question solved. Keep going.
Continue with the next Number Series question and build your accuracy one question at a time.