PYQPulse
HomeMocksPracticePYQsUpdatesDashboard
PYQPulse

Timing-accurate mock tests and PYQs for SSC, Banking and Railway exams — so the real paper feels like a revision.

Exams

  • SSC exams
  • Banking exams
  • Railway exams
  • All exams

Practice

  • Practice questions
  • Mock test series
  • Sectional tests
  • Year-wise PYQs
  • Performance analytics

Company

  • About us
  • Help Centre
  • Pricing
  • Sign in

Legal

  • Privacy Policy
  • Terms of Service

Contact

  • hello@testwala.co.in
  • Telegram
  • +91 62816 87760

Practice interface modeled on the official exam pattern — not the official examination. PYQPulse is not affiliated with the Staff Selection Commission, IBPS, SBI, RBI, NABARD, SEBI or Indian Railways.

© 2026 PYQPulse. All rights reserved.

Built for aspirants, by aspirants.

HomeMocksPracticeStats
  1. Home
  2. ›
  3. PYQs
  4. ›
  5. RRB Group D (Level-1 posts)
  6. ›
  7. 2022
  8. ›
  9. Q187

RRB Group D (Level-1 posts) 2022 · Question 187 of 598

The expansion of (3a - 4b - 2c)² is:

  1. A9a² + 16b² + 4c² - 24ab + 8bc + 12ac
  2. B9a² + 16b² + 4c² + 12ab - 8bc + 6ac
  3. C9a² + 16b² + 4c² - 24ab + 16bc - 12acCorrect
  4. D9a² + 16b² + 4c² - 24ab + 16bc - 6ac

Answer: C. 9a² + 16b² + 4c² - 24ab + 16bc - 12ac

Explanation

Expanding (3a - 4b - 2c)² correctly yields 9a² + 16b² + 4c² - 24ab + 16bc - 12ac.

Source: RRB Group D 2022 Prev. Yr. Paper (17 Aug 2022) (Shift 2) - Prepp · reliable-secondary

← Q186View full paper (598 questions)Q188 →

Practice the full RRB Group D (Level-1 posts) 2022 paper

Timed test with all 598 questions, just like the real exam.

Start test