Question
If x2 × x3 = xa and x²/(x^b) = x1, what is the value of a + b?
Asked in RRB NTPC (UG) CBT-I · 2026
Surds and Indices · Quantitative Aptitude
Exam PYQ4 Options
Exam Tip
If two powers have the same base, equate their exponents. For example, 3ᴬ = 3ᴮ gives A = B.
Correct AnswerCorrect option for this question
Learn Surds and Indices in 60 Seconds
Turn tricky surd expressions into simple ones with quick rationalisation and simplification methods for competitive exams.
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 Surds and Indices in Previous Exams
See how many previous-year questions are mapped to this exact video topic across major government exams.
12UPSC Questions Asked in These Years:2011, 2012, 2013, 2014, 2015, 2018, 2019, 2020, 2021, 2022, 2023, 2026
10SSC Questions Asked in These Years:2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026
7Railways Questions Asked in These Years:2016, 2018, 2021, 2022, 2024, 2025, 2026
16State PSC Questions Asked in These Years:2002, 2004, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025
45 exam questions have been mapped to this exact video topic, with the highest frequency in State PSC, UPSC and SSC.
2-Minute Revision Notes
Revise Surds and Indices 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 Simplification question and build your accuracy one question at a time.