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 NTPC
  6. ›
  7. 2026
  8. ›
  9. Q58

RRB NTPC 2026 · Question 58 of 93

Find the volume (in cm³) of a sphere having a diameter of 4.2 cm, giving your answer correct to two places of decimal. 22 Take π = ​ 7 ​

  1. A18.8
  2. B188.8
  3. C38.8Correct
  4. D168.8

Answer: C. 38.8

Explanation

Given ​ Diameter = 4.2 cm Formula Used 4 3 V = πr 3 ​ Solution 4.2 r= = 2.1 2 ​ 4 V = π(2.1)3 3 ​ 4 = π × 9.261 3 ​ = 12.348π = 38.79 ≈ 3.8.8 ​

Source: RRB NTPC CBT-I Memory-Based Paper 16 March 2026 S1 (careerpower test-platform compilation) · memory-based

← Q57View full paper (93 questions)Q59 →

Practice the full RRB NTPC 2026 paper

Timed test with all 93 questions, just like the real exam.

Start test