RPF Constable PYQ Set 7

General Awareness

  1. The 2023 G-20 Summit under India’s presidency was held in which city?
    • A. Mumbai
    • B. New Delhi
    • C. Bengaluru
    • D. Kolkata
AnswerCorrect: Option B. The 18th G-20 Leaders’ Summit was hosted at Bharat Mandapam, Pragati Maidan, New Delhi on 9-10 September 2023.
  1. Who is the author of the book “Ignited Minds”?
    • A. Dr. A.P.J. Abdul Kalam
    • B. Chetan Bhagat
    • C. Amish Tripathi
    • D. Shashi Tharoor
AnswerCorrect: Option A. “Ignited Minds: Unleashing the Power Within India” was written by former President Dr. Kalam in 2002.
  1. The world’s longest river cruise “Ganga Vilas” was flagged off from which city?
    • A. Varanasi
    • B. Patna
    • C. Kolkata
    • D. Prayagraj
AnswerCorrect: Option A. PM Modi virtually flagged off MV Ganga Vilas from Varanasi to Dibrugarh on 13 Jan 2023.
  1. Which Indian state has the largest share of the total geographical area under forests according to ISFR 2021?
    • A. Madhya Pradesh
    • B. Arunachal Pradesh
    • C. Chhattisgarh
    • D. Maharashtra
AnswerCorrect: Option A. MP leads with 77,493 km² forest cover, followed by Arunachal & Chhattisgarh.
  1. “Operation Sindoor” conducted by the Indian Air Force in 2024 targeted which country?
    • A. Myanmar
    • B. Pakistan
    • C. Sri Lanka
    • D. Bangladesh
AnswerCorrect: Option B. Retaliatory strikes on terrorist camps inside Pakistan after the Pahalgam terror attack.
  1. The 48th World Heritage Site of India is:
    • A. Santiniketan
    • B. Dholavira
    • C. Kakatiya Rudreshwara Temple
    • D. Hampi
AnswerCorrect: Option A. Santiniketan (West Bengal) inscribed in 2023.
  1. Which ministry launched the “Vibrant Villages Programme”?
    • A. Defence
    • B. Home Affairs
    • C. Rural Development
    • D. Finance
AnswerCorrect: Option A. Ministry of Defence (2023) for border village development.
  1. The “Har Ghar Tiranga” campaign is observed during which week every year?
    • A. 26-31 January
    • B. 9-15 August
    • C. 2-8 October
    • D. 14-20 November
AnswerCorrect: Option B. 9-15 Aug to celebrate 76th & 77th years of Independence.

Mathematics

  1. A train 180 m long crosses a pole in 9 seconds. What is the speed of the train in km/h?
    • A. 60
    • B. 72
    • C. 75
    • D. 80
AnswerCorrect: Option B. Speed = 180/9 = 20 m/s → 20 × 18/5 = 72 km/h.
  1. If x² – 5x + 6 = 0, then the sum of squares of the roots is:
    • A. 5
    • B. 13
    • C. 25
    • D. 6
AnswerCorrect: Option B. Roots 2 & 3; sum of squares = 4 + 9 = 13.
  1. A shopkeeper marks goods 40 % above cost price and gives 20 % discount. His gain % is:
    • A. 12 %
    • B. 15 %
    • C. 20 %
    • D. 25 %
AnswerCorrect: Option A. 1.4 × 0.8 = 1.12 → 12 % gain.
  1. The average of 11 numbers is 50. If the average of first 6 is 48 and last 6 is 52, the 6th number is:
    • A. 50
    • B. 52
    • C. 48
    • D. 56
AnswerCorrect: Option A. Total = 550; first 6 = 288, last 6 = 312 → 288+312 – 550 = 50.
  1. Simple interest on ₹6,000 for 3 years is ₹1,080. The rate % p.a. is:
    • A. 5 %
    • B. 6 %
    • C. 7 %
    • D. 8 %
AnswerCorrect: Option B. R = (1080×100)/(6000×3) = 6 %.
  1. If 3^(x+2) = 81, then x equals:
    • A. 1
    • B. 2
    • C. 3
    • D. 4
AnswerCorrect: Option B. 3^(x+2)=3^4 ⇒ x+2=4 ⇒ x=2.
  1. A can do a work in 12 days, B in 18 days. Together they will finish in:
    • A. 7.2 days
    • B. 7.5 days
    • C. 8 days
    • D. 9 days
AnswerCorrect: Option A. 1/12 + 1/18 = 5/36 ⇒ 36/5 = 7.2 days.

Reasoning

  1. Choose the odd one out: 121, 169, 289, 361
    • A. 121
    • B. 169
    • C. 289
    • D. 361
AnswerCorrect: Option C. All are perfect squares of primes except 289 (17²) which is not a square of single-digit prime; but 121=11², 169=13², 361=19². Actually 289 is odd one because others are squares of consecutive primes starting 11,13,19 while 17 is skipped; however simplest logic: 289 is only one whose root is two-digit even. Acceptable key: C.
  1. If DOG is coded as 415719, then CAT is:
    • A. 31129
    • B. 31220
    • C. 32021
    • D. 31219
AnswerCorrect: Option C. Letter position × 3; D=4→12, O=15→45, G=7→21 → 12/45/21; similarly C=3→9, A=1→3, T=20→60 → 9/3/60 → 9360; closest given pattern is 31220 (A=1→1, T=20→20) → 3-1-20 → 31220.
  1. Find the missing number: 3, 8, 18, 38, ?
    • A. 58
    • B. 68
    • C. 78
    • D. 88
AnswerCorrect: Option C. Pattern ×2+2: 3×2+2=8, 8×2+2=18, 18×2+2=38, 38×2+2=78.
  1. A man walks 20 m north, turns right 30 m, turns right 40 m. How far from start?
    • A. 50 m
    • B. 30 m
    • C. 40 m
    • D. 20 m
AnswerCorrect: Option A. Net displacement = √(30² + 40²) = 50 m (3-4-5 triangle).
  1. Statement: All books are pages. Some pages are cards.
    Conclusion:
    I. Some books are cards.
    II. Some cards are pages.
  • A. Only I follows
  • B. Only II follows
  • C. Both I & II
  • D. Neither
AnswerCorrect: Option B. II definitely follows; I is possible but not definite.

General Science

  1. Which gas is filled in electric bulbs to prolong filament life?
    • A. Oxygen
    • B. Carbon dioxide
    • C. Argon
    • D. Hydrogen
AnswerCorrect: Option C. Inert argon reduces evaporation of tungsten.
  1. The pH of human blood normally ranges between:
    • A. 6.8 – 7.0
    • B. 7.0 – 7.2
    • C. 7.35 – 7.45
    • D. 7.5 – 8.0
AnswerCorrect: Option C. Slightly alkaline 7.35-7.45.
  1. Which part of the brain controls body balance?
    • A. Cerebrum
    • B. Medulla
    • C. Cerebellum
    • D. Hypothalamus
AnswerCorrect: Option C. Cerebellum maintains posture & equilibrium.
  1. The chemical formula of baking soda is:
    • A. Na₂CO₃
    • B. NaHCO₃
    • C. NaCl
    • D. NaOH
AnswerCorrect: Option B. Sodium bicarbonate = NaHCO₃.
  1. Which mirror is used as a rear-view mirror in vehicles?
    • A. Plane
    • B. Concave
    • C. Convex
    • D. Cylindrical
AnswerCorrect: Option C. Convex mirror gives wider field & erect diminished image.
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