PYQPulse
HomeMocksPracticePYQsDashboard
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. 2015
  8. ›
  9. Q25

RRB Junior Engineer / DMS / CMA 2015 · Question 25 of 480

The sum and product of the roots of the equation x2 - 8x + 4 = 0 are respectively

Mathematics - Quadratic Equations

  1. Aa. -8,4
  2. Bb. 8,-4
  3. Cc. 8,4Correct
  4. Dd. -8,-4

Answer: C. c. 8,4

Explanation

Given equation, x2 - 8x + 4 = 0 o * -coeff. ofx -(-8) „ Sum of the roots =-= ——- = 8 coeff. ofx2 1 n , , , . constant term 4 . Product of roots =-— = - = 4 coeff. ofx2 1

Source: Arihant RRB JE Solved Paper 26-Aug-2015 (3rd Shift), Q91–150 — published solved-paper compilation (Q1–90 technical not included in this source) · memory-based

← Q24View full paper (480 questions)Q26 →

Practice the full RRB Junior Engineer / DMS / CMA 2015 paper

Timed test with all 480 questions, just like the real exam.

Start test