Question
Select the number from among the given options that can replace the question mark (?) in the following series.
121, 144, 169, 196, ?
Asked in RRB Group D · 2026
Series · Logical Reasoning
Exam PYQ4 Options
Exam Tip
Watch for alternating addition and subtraction with changing values. A pattern such as +2, −4, +6, −8 alternates the sign while increasing the number used.
Correct AnswerCorrect option for this question
Learn Series in 60 Seconds
See how to identify the addition pattern and quickly find the missing number in this 60-second lesson.
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.