Question

If 3n = 243, what will be the value of (1)(n-1)?

Asked in SSC Selection Post 2025 (Graduate Level) · 2025
Surds and Indices · Quantitative Aptitude
Exam PYQ4 Options
Quantitative AptitudeSimplificationSurds and IndicesSSC Selection Post 2025 (Graduate Level)2025
💡
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
Option B — 1

Learn Surds and Indices in 60 Seconds

Learn quick ways to rationalise and simplify surds without getting stuck in lengthy calculations. Master the basics in just 60 seconds and solve Quant questions faster.

Topic Video
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.

High Exam Frequency
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.

Open Revision Notes ↗

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.