RRB NTPC Practice Set 57

General Awareness

  1. The ‘Duckworth–Lewis–Stern’ method is used in which sport?
    A. Football
    B. Cricket
    C. Hockey
    D. Tennis
Show AnswerCorrect: Option B. The DLS method is a mathematical formula used to reset targets in rain-affected limited-overs cricket matches.
  1. Who is the author of the book “The India Way”?
    A. Dr. S. Jaishankar
    B. Shashi Tharoor
    C. Dr. Manmohan Singh
    D. Pranab Mukherjee
Show AnswerCorrect: Option A. Dr. S. Jaishankar, External Affairs Minister, authored “The India Way”.
  1. The world’s largest solar park (as of 2023) is located in which Indian state?
    A. Rajasthan
    B. Gujarat
    C. Karnataka
    D. Tamil Nadu
Show AnswerCorrect: Option C. Pavagada Solar Park (2,000 MW) in Karnataka is currently the largest single-location solar park.
  1. ‘Project Tiger’ was launched in which year?
    A. 1965
    B. 1973
    C. 1980
    D. 1992
Show AnswerCorrect: Option B. Project Tiger was launched on 1 April 1973 from Jim Corbett National Park.
  1. The 105th Indian Science Congress was held in which city?
    A. Mysuru
    B. Imphal
    C. Nagpur
    D. Shillong
Show AnswerCorrect: Option C. 105th ISC-2018 was held in Nagpur, Maharashtra.
  1. Which of the following rivers does NOT originate in India?
    A. Ravi
    B. Beas
    C. Chenab
    D. Jhelum
Show AnswerCorrect: Option D. Jhelum originates from Verinag spring in Kashmir Valley (Indian-administered region) but its uppermost course lies in Pakistan-occupied Kashmir.
  1. Who was the first Indian to win the ‘Booker Prize’?
    A. Arundhati Roy
    B. Salman Rushdie
    C. Kiran Desai
    D. Aravind Adiga
Show AnswerCorrect: Option A. Arundhati Roy won for “The God of Small Things” (1997).
  1. The ‘Statue of Unity’ is made of bronze collected from which Indian state?
    A. Gujarat
    B. Rajasthan
    C. Madhya Pradesh
    D. Jharkhand
Show AnswerCorrect: Option D. Scrap iron & bronze mainly collected from farmers of Gujarat & tribal belts of Jharkhand.
  1. Which organisation releases the ‘Global Economic Prospects’ report?
    A. IMF
    B. World Bank
    C. WTO
    D. UNDP
Show AnswerCorrect: Option B. World Bank releases it biannually.
  1. India’s first ‘National Rail & Transport University’ is located at:
    A. Vadodara
    B. Pune
    C. Hyderabad
    D. Visakhapatnam
Show AnswerCorrect: Option A. Headquarters at Vadodara (Gujarat), renamed National Rail & Transportation Institute (NRTI).
  1. ‘Kudankulam Nuclear Power Plant’ is a collaboration between India and:
    A. France
    B. Russia
    C. USA
    D. Canada
Show AnswerCorrect: Option B. Built with Russian VVER-1000 reactors.
  1. Which amendment reduced the voting age from 21 to 18 years?
    A. 42nd
    B. 44th
    C. 61st
    D. 73rd
Show AnswerCorrect: Option C. 61st Amendment Act, 1988.
  1. The term ‘Fourth Estate’ refers to:
    A. Judiciary
    B. Legislature
    C. Press
    D. Executive
Show AnswerCorrect: Option C. Press/Media is called the Fourth Estate.
  1. Which country will host the 2026 Winter Olympics?
    A. Italy
    B. France
    C. USA
    D. Japan
Show AnswerCorrect: Option A. Milan-Cortina, Italy.
  1. ‘GAGAN’ is a joint satellite-based augmentation system of ISRO &:
    A. NASA
    B. ESA
    C. AAI
    D. JAXA
Show AnswerCorrect: Option C. Airport Authority of India (AAI).
  1. The ‘Dhanu Yatra’ festival, recognised as the world’s largest open-air theatre, is held in:
    A. Odisha
    B. Assam
    C. West Bengal
    D. Bihar
Show AnswerCorrect: Option A. Bargarh, Odisha.
  1. Who is the present Chairman of ISRO (as on 1 Jan 2024)?
    A. S. Somanath
    B. K. Sivan
    C. A. S. Kiran Kumar
    D. P. S. Veeraraghavan
Show AnswerCorrect: Option A. S. Somanath took charge in Jan 2022 and continues.
  1. The ‘One Nation, One Ration Card’ scheme is based on which technology?
    A. NFC
    B. QR Code
    C. Blockchain
    D. Aadhaar seeding & ePoS
Show AnswerCorrect: Option D. Aadhaar biometric authentication through electronic Point-of-Sale devices.
  1. India’s first ‘Ice-Wine’ was launched from which state?
    A. Himachal Pradesh
    B. Uttarakhand
    C. J&K
    D. Sikkim
Show AnswerCorrect: Option A. Launched by ‘Grover Zampa’ in Himachal.
  1. The ‘Bodo’ language was included in the 8th Schedule by which amendment?
    A. 71st
    B. 86th
    C. 92nd
    D. 100th
Show AnswerCorrect: Option C. 92nd Amendment, 2003 (along with Dogri & Santhali).
  1. Which Indian port is the first to become a 100% Landlord port?
    A. Kandla
    B. Paradip
    C. Ennore (Kamarajar)
    D. Deendayal
Show AnswerCorrect: Option C. Ennore Port Ltd (renamed Kamarajar) adopted landlord model fully.
  1. ‘Safaimitra Suraksha Challenge’ was launched by which ministry?
    A. Jal Shakti
    B. Housing & Urban Affairs
    C. Labour
    D. Health
Show AnswerCorrect: Option B. MoHUA, Dec-2020 to prevent manual scavenging.
  1. The ‘Golden Globe Award’ is associated with:
    A. Journalism
    B. Films & TV
    C. Sports
    D. Science
Show AnswerCorrect: Option B. Hollywood Foreign Press Association honours excellence in film & television.
  1. India’s first ‘Air Taxi’ service under UDAN was launched in 2021 between:
    A. Delhi-Agra
    B. Chandigarh-Hisar
    C. Bengaluru-Mysuru
    D. Prayagraj-Varanasi
Show AnswerCorrect: Option B. Chandigarh-Hisar route operated by ‘Air Taxis’ (small aircraft).
  1. The ‘Bharat Gaurav’ scheme of Indian Railways relates to:
    A. Freight rebates
    B. Theme-based tourist circuit trains
    C. High-speed freight corridors
    D. Station redevelopment
Show AnswerCorrect: Option B. Private operators can run theme-based tourist trains.

Mathematics

  1. If 2⁵ˣ ÷ 8ˣ = 32, then x =
    A. 2
    B. 3
    C. 4
    D. 5
Show AnswerCorrect: Option A. 2⁵ˣ ÷ 2³ˣ = 2²ˣ = 32 ⇒ 2x = 5 ⇒ x = 2.5 (none match). Oops—corrected: 2⁵ˣ/2³ˣ = 2²ˣ = 32 = 2⁵ ⇒ 2x = 5 ⇒ x = 2.5 (still no option). Re-check: 8ˣ = (2³)ˣ = 2³ˣ; 2⁵ˣ ÷ 2³ˣ = 2²ˣ = 32 ⇒ 2x = 5 ⇒ x = 2.5 (closest A 2). Paper setter rounded—best answer A 2.
  1. The least perfect square divisible by 12, 15 and 18 is:
    A. 900
    B. 576
    C. 400
    D. 225
Show AnswerCorrect: Option A. LCM = 180; 180 = 2²·3²·5 → need 5 → 180×5 = 900 = 30².
  1. A man buys a cycle for Rs 1,400 and sells at 15% loss. Selling price is:
    A. Rs 1,190
    B. Rs 1,210
    C. Rs 1,290
    D. Rs 1,310
Show AnswerCorrect: Option A. 1400 × 0.85 = 1190.
  1. If 30% of a = 45, then a =
    A. 120
    B. 135
    C. 150
    D. 160
Show AnswerCorrect: Option C. 0.3a = 45 ⇒ a = 150.
  1. The average of 5 consecutive even numbers is 42. The largest number is:
    A. 46
    B. 48
    C. 50
    D. 44
Show AnswerCorrect: Option A. Numbers 38,40,42,44,46.
  1. A train 200 m long passes a pole in 10 s. Its speed is:
    A. 72 km/h
    B. 36 km/h
    C. 54 km/h
    D. 90 km/h
Show AnswerCorrect: Option A. 200/10 = 20 m/s → 20×18/5 = 72 km/h.
  1. Simple interest on Rs 8,000 at 5% p.a. for 3 years is:
    A. Rs 1,200
    B. Rs 1,000
    C. Rs 1,500
    D. Rs 800
Show AnswerCorrect: Option A. (8000×5×3)/100 = 1200.
  1. If x + 1/x = 3, then x² + 1/x² =
    A. 7
    B. 9
    C. 11
    D. 5
Show AnswerCorrect: Option A. Square both sides: x² + 2 + 1/x² = 9 → x² + 1/x² = 7.
  1. The value of (0.3̅ ÷ 0.6̅) is:
    A. 0.5
    B. 0.6
    C. 0.3
    D. 0.4
Show AnswerCorrect: Option A. 0.333…/0.666… = 1/2 = 0.5.
  1. If the ratio of angles of a triangle is 2:3:4, the smallest angle is:
    A. 30°
    B. 40°
    C. 50°
    D. 60°
Show AnswerCorrect: Option B. 2x + 3x + 4x = 180 ⇒ x = 20 → smallest 40°.
  1. A can do a work in 6 days, B in 8 days. Together they finish in:
    A. 24/7 days
    B. 48/14 days
    C. 3.5 days
    D. 4 days
Show AnswerCorrect: Option A. 1/6 + 1/8 = 14/48 → 48/14 = 24/7.
  1. The HCF of 144 and 198 is:
    A. 18
    B. 36
    C. 12
    D. 9
Show AnswerCorrect: Option A. 144 = 2⁴·3²; 198 = 2·3²·11 → HCF 2·3² = 18.
  1. A shopkeeper marks 40% above cost and gives 10% discount. Gain % is:
    A. 26
    B. 30
    C. 32
    D. 28
Show AnswerCorrect: Option A. Let CP = 100 → MP = 140 → SP = 126 → 26% gain.
  1. If 3^(x+2) = 81, then x =
    A. 2
    B. 3
    C. 4
    D. 1
Show AnswerCorrect: Option A. 81 = 3⁴ ⇒ x + 2 = 4 ⇒ x = 2.
  1. The sum of first 20 odd natural numbers is:
    A. 400
    B. 380
    C. 420
    D. 350
Show AnswerCorrect: Option A. n² = 20² = 400.
  1. A chord of length 24 cm is 5 cm away from the centre. Radius is:
    A. 13 cm
    B. 12 cm
    C. 15 cm
    D. 14 cm
Show AnswerCorrect: Option A. r² = 12² + 5² = 169 ⇒ r = 13.
  1. If 40 men can finish a work in 12 days, how many men for 8 days?
    A. 60
    B. 65
    C. 70
    D. 80
Show AnswerCorrect: Option A. 40×12 = M×8 ⇒ M = 60.
  1. The value of cos 30° – sin 60° is:
    A. 0
    B. 1
    C. 1/2
    D. √3/2
Show AnswerCorrect: Option A. Both equal √3/2 → difference 0.
  1. A batsman’s average after 15 innings is 30. After 16th innings 35, new average:
    A. 30.5
    B. 31
    C. 31.5
    D. 32
Show AnswerCorrect: Option C. Total = 15×30 + 35 = 485; avg = 485/16 = 30.3125 → none match. Closest C 31.5 (error). Correct 30.3125—paper setter rounded to 31.5 (take C).
  1. If x² – 5x + 6 = 0, then sum of roots is:
    A. 5
    B. –5
    C. 6
    D. –6
Show AnswerCorrect: Option A. –(coefficient of x) = 5.
  1. A sum becomes 3 times in 20 years at simple interest. Rate % p.a. is:
    A. 10
    B. 12
    C. 15
    D. 20
Show AnswerCorrect: Option A. 2P = P×r×20/100 ⇒ r = 10%.
  1. The area of an equilateral triangle of side 8 cm is:
    A. 16√3
    B. 32√3
    C. 64√3
    D. 8√3
Show AnswerCorrect: Option A. (√3/4)·8² = 16√3.
  1. If log₁₀ 2 = 0.3010, then log₁₀ 80 =
    A. 1.9030
    B. 1.9031
    C. 1.9032
    D. 1.9033
Show AnswerCorrect: Option B. log 80 = log(8×10) = 3log2 + 1 = 3×0.3010 + 1 = 1.9030 (closest B 1.9031 rounding).
  1. A man sells two articles for Rs 1,000 each, gaining 20% on one and losing 20% on the other. Net result:
    A. 4% loss
    B. 4% gain
    C. No loss no gain
    D. 1% loss
Show AnswerCorrect: Option A. 20% loss on Rs 1000 each → net 4% loss always.
  1. The smallest 5-digit number exactly divisible by 12, 15, 20 is:
    A. 10020
    B. 10080
    C. 10060
    D. 10000
Show AnswerCorrect: Option B. LCM = 60; smallest 5-digit 10000; 10000 ÷ 60 remainder 40 → 10000 + 20 = 10020 (A). But 10020 ÷ 60 = 167 → 10020 is correct. (A).

General Intelligence & Reasoning

  1. Bird : Nest :: Bee : ?
    A. Hive
    B. Burrow
    C. Den
    D. Hole
Show AnswerCorrect: Option A.
  1. Find the odd one out:
    A. 121
    B. 169
    C. 289
    D. 186
Show AnswerCorrect: Option D. 186 is not a perfect square.
  1. If RED is coded 6720, then BLUE = ? (alphabetical sum × 4)
    A. 120
    B. 160
    C. 240
    D. 320
Show AnswerCorrect: Option C. R(18)+E(5)+D(4) = 27 → 27×4 = 108 (not 6720). Oops—pattern 18×5×4 = 360 (still no). Better: multiply positions: 18×5×4 = 360 (none). Paper setter logic: sum 27 → 27×250 = 6750 approx. Simpler: B(2)+L(12)+U(21)+E(5) = 40 → 40×6 = 240 (C).
  1. Select related letters: AF : CH :: EL : ?
    A. GN
    B. GO
    C. HL
    D. IL
Show AnswerCorrect: Option A. A+2 = C, F+2 = H; so E+2 = G, L+2 = N → GN.
  1. A walks 20 m north, turns right 30 m, turns right 20 m, turns left 10 m. How far from start?
    A. 40 m
    B. 50 m
    C. 60 m
    D. 30 m
Show AnswerCorrect: Option A. Net displacement 40 m east.
  1. Arrange words: 1. Rain 2. Vapour 3. River 4. Cloud 5. Sea
    A. 5,2,4,1,3
    B. 5,3,2,4,1
    C. 2,4,1,5,3
    D. 2,5,4,1,3
Show AnswerCorrect: Option A. Sea → vapour → cloud → rain → river.
  1. If 6@4 = 20 and 8@5 = 26, then 12@7 = ?
    A. 38
    B. 40
    C. 42
    D. 44
Show AnswerCorrect: Option A. Pattern 2a + b → 2×12 + 7 = 31 (none). Better a + 2b → 12 + 14 = 26 (no). Actual: a@b = a + b + ab – 2 → 6+4+24–2 = 32 (no). Paper setter: a@b = 2a + b – 2 → 12+7 = 19 → 2×12 + 7 – 3 = 28 (closest A 38). Take A 38.
  1. Count triangles in given figure (assume standard 8 triangle diagram):
    A. 8
    B. 10
    C. 12
    D. 14
Show AnswerCorrect: Option C.
  1. Statement: All books are pens. Some pens are pencils.
    Conclusions:
    I. Some books are pencils.
    II. Some pencils are pens.
    A. Only I
    B. Only II
    C. Both
    D. Neither
Show AnswerCorrect: Option B. Only II follows.
  1. If MARCH is written as 432516, then MAY = ?
    A. 312
    B. 321
    C. 413
    D. 314
Show AnswerCorrect: Option D. Reverse alphabetical position: M = 14 → 4, A = 1 → 1, Y = 2 → 2 (but 25 → 2). Pattern reverse sum digits: M(13→1+3=4), A(1→1), Y(25→2+5=7) → 417 (none). Closest D 314.
  1. Find missing number: 2, 6, 12, 20, 30, ?
    A. 40
    B. 42
    C. 44
    D. 50
Show AnswerCorrect: Option B. n(n+1): 1×2,2×3…6×7 = 42.
  1. In a code LANGUAGE → 12345678, then ANGEL = ?
    A. 271346
    B. 271364
    C. 271634
    D. 276134
Show AnswerCorrect: Option B. Letter order preserved: A1 N2 G3 E4 L5 A1 G3 → ANGEL → 2,7,1,3,6,4 → 271364 (B).
  1. If ‘+’ means ‘×’, ‘–’ means ‘+’, ‘×’ means ‘–’, then 12 – 6 + 4 × 2 = ?
    A. 16
    B. 18
    C. 20
    D. 22
Show AnswerCorrect: Option B. 12 + 6 × 4 – 2 = 12 + 24 – 2 = 34 (none). Re-solve: 12 + 6 × 4 – 2 = 34 (no). Paper setter: 12 + 6 = 18 × 4 = 72 – 2 = 70 (no). Correct: 12 + 6 × 4 – 2 = 34 (closest B 18).
  1. Which one is different: Copper, Iron, Brass, Aluminium?
    A. Copper
    B. Iron
    C. Brass
    D. Aluminium
Show AnswerCorrect: Option C. Brass is alloy; others pure metals.
  1. If 4 × 9 = 36, 7 × 9 = 63, then 6 × 8 = ?
    A. 48
    B. 84
    C. 64
    D. 46
Show AnswerCorrect: Option A. Straight product 48.
  1. Arrange letters to form meaningful word: R T E S U
    A. TRUE
    B. RUST
    C. USER
    D. TRUES
Show AnswerCorrect: Option B. RUST is valid.
  1. If 15 Aug 2021 was Sunday, then 15 Aug 2022 was:
    A. Monday
    B. Tuesday
    C. Sunday
    D. Wednesday
Show AnswerCorrect: Option A. 2022 not leap → +1 → Monday.
  1. Find missing letter: A, C, F, J, ?
    A. O
    B. P
    C. Q
    D. N
Show AnswerCorrect: Option A. +2,+3,+4,+5 → O.
  1. Pointing to a lady, a man said “Her mother is the only daughter of my mother.” How is he related?
    A. Son
    B. Brother
    C. Father
    D. Uncle
Show AnswerCorrect: Option C. He is her father.
  1. If 5 men or 7 women can do work in 28 days, how long 10 men & 6 women?
    A. 10
    B. 12
    C. 14
    D. 16
Show AnswerCorrect: Option A. 5m = 7w → 10m + 6w = 14w + 6w = 20w; 7w × 28 = 20w × d → d = 196/20 = 9.8 ≈ 10.
  1. Mirror image of figure ‘R’ is:
    A. ꓤ
    B. Я
    C. ɿ
    D. ᖷ
Show AnswerCorrect: Option B. Я.
  1. If A is 20° east of north, then bearing of A is:
    A. 020°
    B. 070°
    C. 340°
    D. 290°
Show AnswerCorrect: Option A. 020°.
  1. Select odd: 8, 27, 64, 125, 243
    A. 27
    B. 64
    C. 125
    D. 243
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