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 Junior Engineer / DMS / CMA
  6. ›
  7. 2024
  8. ›
  9. Q232

RRB Junior Engineer / DMS / CMA 2024 · Question 232 of 730

Write the expanded form of (7a + 9b + 4c)2.

  1. A49a2 + 81b2 + 16c2 + 126ab + 72bc + 56acCorrect
  2. B49a2 + 81b2 + 16c2 + 126ab + 72bc + 66ac
  3. C49a2 + 81b2 + 16c2 + 130ab + 72bc + 56ac
  4. D49a2 + 81b2 + 16c2 + 126ab + 67bc + 56ac

Answer: A. 49a2 + 81b2 + 16c2 + 126ab + 72bc + 56ac

Official answer key verified. Detailed explanation coming soon.

Source: Railway Junior Engineer 2024 Answer Key compilation (English) — testranking.in (Gagan Pratap) · reliable-secondary

← Q231View full paper (730 questions)Q233 →

Practice the full RRB Junior Engineer / DMS / CMA 2024 paper

Timed test with all 730 questions, just like the real exam.

Start test