RRB ALP Practice Set 29

General Awareness

  1. The 2023 G-20 Summit was held in which Indian city?

    • A) Mumbai
    • B) New Delhi
    • C) Bengaluru
    • D) Hyderabad
    AnswerCorrect: Option B. Explanation: India hosted the 18th G-20 Summit in New Delhi on 9–10 September 2023.
  2. Who is the author of the book “Ignited Minds”?

    • A) A.P.J. Abdul Kalam
    • B) Narendra Modi
    • C) Manmohan Singh
    • D) Pranab Mukherjee
    AnswerCorrect: Option A. Explanation: “Ignited Minds” is a motivational book written by former President Dr. A.P.J. Abdul Kalam.
  3. The “Duckworth–Lewis” method is associated with which sport?

    • A) Football
    • B) Tennis
    • C) Cricket
    • D) Hockey
    AnswerCorrect: Option C. Explanation: The DLS method is a mathematical formulation used to reset targets in rain-affected limited-overs cricket matches.
  4. Which Indian state launched the “Mission Shakti” scheme for women’s empowerment?

    • A) Maharashtra
    • B) Uttar Pradesh
    • C) Odisha
    • D) Gujarat
    AnswerCorrect: Option B. Explanation: UP government launched Mission Shakti in 2020 focusing on safety, security and empowerment of women.
  5. The World Health Organization (WHO) is headquartered in:

    • A) Geneva
    • B) New York
    • C) Paris
    • D) Rome
    AnswerCorrect: Option A. Explanation: WHO’s headquarters is in Geneva, Switzerland.
  6. Which river is known as the “Sorrow of Bihar”?

    • A) Gandak
    • B) Kosi
    • C) Son
    • D) Bagmati
    AnswerCorrect: Option B. Explanation: Kosi river changes course frequently causing floods, hence the nickname.
  7. India’s first solar-powered railway station is:

    • A) Guwahati
    • B) Jaipur
    • C) Anand Vihar (Delhi)
    • D) Secunderabad
    AnswerCorrect: Option A. Explanation: Guwahati railway station became fully solar powered in 2017.
  8. The currency of Argentina is:

    • A) Peso
    • B) Real
    • C) Dollar
    • D) Bolivar
    AnswerCorrect: Option A. Explanation: Argentine Peso is the official currency.
  9. Which film won the National Film Award 2023 for Best Feature Film?

    • A) RRR
    • B) Sardar Udham
    • C) Rocketry
    • D) Ayyappanum Koshiyum
    AnswerCorrect: Option B. Explanation: Sardar Udham won the 69th National Film Award for Best Hindi Feature Film.
  10. The “Statue of Unity” is situated on which river?

    • A) Narmada
    • B) Tapi
    • C) Sabarmati
    • D) Mahi
    AnswerCorrect: Option A. Explanation: It stands on the Sadhu Bet island facing the Narmada dam.
  11. Who is the present RBI Governor (as of June 2024)?

    • A) Shaktikanta Das
    • B) Raghuram Rajan
    • C) Urjit Patel
    • D) Viral Acharya
    AnswerCorrect: Option A. Explanation: Shaktikanta Das was re-appointed till 2024.
  12. The India-Australia Test series trophy is named:

    • A) Pataudi Trophy
    • B) Border-Gavaskar Trophy
    • C) Wisden Trophy
    • D) Anthony de Mello Trophy
    AnswerCorrect: Option B. Explanation: Instituted in 1996, it honours Sunil Gavaskar & Allan Border.
  13. Which planet was demoted to “dwarf planet” status in 2006?

    • A) Neptune
    • B) Pluto
    • C Uranus
    • D) Jupiter
    AnswerCorrect: Option B. Explanation: IAU reclassified Pluto as a dwarf planet.
  14. India’s first indigenous aircraft carrier is:

    • A) INS Vikrant
    • B) INS Vikramaditya
    • C) INS Vishal
    • D) INS Shakti
    AnswerCorrect: Option A. Explanation: IAC-1 named INS Vikrant was commissioned in 2022.
  15. The largest coal-producing state of India is:

    • A) Jharkhand
    • B) Odisha
    • C) Chhattisgarh
    • D) West Bengal
    AnswerCorrect: Option A. Explanation: Jharkhand tops with ~27% of national output.
  16. Which day is observed as “National Voters’ Day” in India?

    • A) 26 Jan
    • B) 15 Aug
    • C) 25 Jan
    • D) 30 Jan
    AnswerCorrect: Option C. Explanation: 25 Jan since 2011 to encourage enrolment.
  17. The first woman to climb Mount Everest twice is:

    • A) Bachendri Pal
    • B) Santosh Yadav
    • C) Premlata Agarwal
    • D) Arunima Sinha
    AnswerCorrect: Option B. Explanation: Santosh Yadav climbed in 1992 & 1993.
  18. Which amendment reduced the voting age from 21 to 18?

    • A) 42nd
    • B) 44th
    • C) 61st
    • D) 73rd
    AnswerCorrect: Option C. Explanation: 61st Constitutional Amendment 1988.
  19. The headquarters of FIFA is located in:

    • A) Zurich
    • B) Paris
    • C) Dubai
    • D) London
    AnswerCorrect: Option A. Explanation: FIFA HQ is in Zurich, Switzerland.
  20. Which Indian airport got the first “Carbon Neutral” status?

    • A) Cochin
    • B) Delhi
    • C) Bengaluru
    • D) Mumbai
    AnswerCorrect: Option A. Explanation: Cochin International became carbon neutral in 2015.
  21. The “One Nation One Ration Card” scheme was launched in:

    • A) 2018
    • B) 2019
    • C) 2020
    • D) 2021
    AnswerCorrect: Option B. Explanation: ONORC rolled out nationally in 2019.
  22. Who discovered Penicillin?

    • A) Alexander Fleming
    • B) Louis Pasteur
    • C) Edward Jenner
    • D) Joseph Lister
    AnswerCorrect: Option A. Explanation: Fleming discovered it in 1928.
  23. India’s first bullet-train corridor will connect:

    • A) Delhi–Agra
    • B) Mumbai–Ahmedabad
    • C) Chennai–Bengaluru
    • D) Kolkata–Bhubaneswar
    AnswerCorrect: Option B. Explanation: MAHSR project, 508 km, under construction.
  24. The “Golden Quadrilateral” connects which four cities?

    • A) Delhi–Mumbai–Chennai–Kolkata
    • B) Delhi–Mumbai–Bengaluru–Hyderabad
    • C) Mumbai–Chennai–Kolkata–Bhubaneswar
    • D) Delhi–Kolkata–Chennai–Thiruvananthapuram
    AnswerCorrect: Option A. Explanation: 5,846 km highway network connecting the four metros.
  25. The 2024 Summer Olympics will be hosted by:

    • A) Los Angeles
    • B) Paris
    • C) Brisbane
    • D) Tokyo
    AnswerCorrect: Option B. Explanation: Paris will host the 33rd Olympiad, 26 Jul–11 Aug 2024.

Mathematics

  1. If 3x – 7 = 2x + 8, then x equals:

    • A) 1
    • B) 15
    • C) 5
    • D) −1
    AnswerCorrect: Option B. Explanation: 3x – 2x = 8 + 7 ⇒ x = 15.
  2. The HCF of 72, 108 and 144 is:

    • A) 12
    • B) 18
    • C) 36
    • D) 72
    AnswerCorrect: Option C. Explanation: 72 = 2³·3², 108 = 2²·3³, 144 = 2⁴·3²; HCF = 2²·3² = 36.
  3. A train 150 m long passes a pole in 9 s. Speed of train is:

    • A) 50 km/h
    • B) 54 km/h
    • C) 60 km/h
    • D) 72 km/h
    AnswerCorrect: Option C. Explanation: v = 150/9 = 16.66 m/s → 16.66×18/5 = 60 km/h.
  4. Simple interest on ₹2,000 at 5% p.a. for 3 years is:

    • A) ₹300
    • B) ₹250
    • C) ₹200
    • D) ₹350
    AnswerCorrect: Option A. Explanation: SI = 2000×5×3/100 = ₹300.
  5. If a : b = 3 : 4 and b : c = 8 : 9, then a : c =

    • A) 2 : 3
    • B) 3 : 2
    • C) 1 : 3
    • D) 4 : 9
    AnswerCorrect: Option A. Explanation: a/c = (3/4)×(8/9) = 24/36 = 2/3.
  6. The average of first 10 odd numbers is:

    • A) 10
    • B) 11
    • C) 9
    • D) 12
    AnswerCorrect: Option A. Explanation: Sum = 1+3+...+19 = 100; avg = 100/10 = 10.
  7. If x + 1/x = 5, then x² + 1/x² is:

    • A) 23
    • B) 25
    • C) 27
    • D) 29
    AnswerCorrect: Option A. Explanation: Square both sides: x² + 2 + 1/x² = 25 → x² + 1/x² = 23.
  8. A man sells two radios at ₹990 each, gaining 10% on one and losing 10% on the other. Overall gain/loss % is:

    • A) 1% loss
    • B) 1% gain
    • C) No loss no gain
    • D) 2% loss
    AnswerCorrect: Option A. Explanation: When SP same & gain% = loss% = x, net loss = x²/100 = 1%.
  9. If log₁₀ 2 = 0.3010, then log₁₀ 80 is:

    • A) 1.9030
    • B) 1.6020
    • C) 1.2040
    • D) 2.1070
    AnswerCorrect: Option A. Explanation: log 80 = log(8×10) = 3 log 2 + 1 = 3×0.3010 + 1 = 1.9030.
  10. The area of an equilateral triangle of side 4 cm is:

    • A) 4√3 cm²
    • B) 8 cm²
    • C) 12 cm²
    • D) 16 cm²
    AnswerCorrect: Option A. Explanation: Area = (√3/4)a² = (√3/4)×16 = 4√3.
  11. A coin is tossed thrice. Probability of exactly 2 heads is:

    • A) 1/2
    • B) 3/8
    • C) 1/4
    • D) 5/8
    AnswerCorrect: Option B. Explanation: 3 favourable outcomes out of 8 → 3/8.
  12. The smallest 4-digit number divisible by 12, 18 and 24 is:

    • A) 1008
    • B) 1020
    • C) 1032
    • D) 1012
    AnswerCorrect: Option A. Explanation: LCM = 72; 1000 ÷ 72 → remainder 64 → 1000 + (72–64) = 1008.
  13. If 40 men can finish a job in 15 days, how many men can finish it in 10 days?

    • A) 50
    • B) 60
    • C) 65
    • D) 70
    AnswerCorrect: Option B. Explanation: M₁D₁ = M₂D₂ → 40×15 = M₂×10 ⇒ M₂ = 60.
  14. A sum amounts to ₹9,600 in 2 years at 20% p.a. compound interest. The principal is:

    • A) ₹6,000
    • B) ₹6,500
    • C) ₹6,666.67
    • D) ₹7,000
    AnswerCorrect: Option C. Explanation: P = 9600/(1.2)² = 9600/1.44 = 6666.67.
  15. The value of (0.3̅ + 0.2̅) is:

    • A) 0.5̅
    • B) 0.6̅
    • C) 0.4̅
    • D) 0.54̅
    AnswerCorrect: Option A. Explanation: 0.3̅ = 1/3, 0.2̅ = 2/9; sum = 5/9 = 0.5̅.
  16. The greatest number that divides 230 and 350 leaving remainder 5 in each case is:

    • A) 45
    • B) 55
    • C) 65
    • D) 75
    AnswerCorrect: Option A. Explanation: HCF of (230–5)=225 & (350–5)=345 is 45.
  17. If sin θ = 3/5 and θ is acute, then tan θ =

    • A) 3/4
    • B) 4/3
    • C) 5/3
    • D) 5/4
    AnswerCorrect: Option A. Explanation: cos θ = 4/5 → tan θ = sin/cos = 3/4.
  18. A shopkeeper marks goods 40% above CP and gives 20% discount. Gain % is:

    • A) 12
    • B) 14
    • C) 16
    • D) 20
    AnswerCorrect: Option A. Explanation: Let CP=100, MP=140, SP=140×0.8=112 → 12% gain.
  19. The sum of first 20 natural numbers is:

    • A) 210
    • B) 200
    • C) 190
    • D) 220
    AnswerCorrect: Option A. Explanation: n(n+1)/2 = 20×21/2 = 210.
  20. If x² – 7x + 12 = 0, then the larger root is:

    • A) 3
    • B) 4
    • C) 5
    • D) 6
    AnswerCorrect: Option B. Explanation: (x–3)(x–4)=0 → roots 3,4 → larger 4.
  21. A cycle wheel makes 500 revolutions in covering 1.1 km. Radius of wheel is:

    • A) 35 cm
    • B) 38.5 cm
    • C) 40 cm
    • D) 42 cm
    AnswerCorrect: Option A. Explanation: 500×2πr = 110000 → r = 110000/(1000π) ≈ 35 cm.
  22. If a² + b² = 45 and ab = 18, then (a + b) =

    • A) 9
    • B) 8
    • C) 7
    • D) 6
    AnswerCorrect: Option A. Explanation: (a+b)² = 45+2×18 = 81 → a+b = 9.
  23. The value of 2¹⁰ – 1 is:

    • A) 1023
    • B) 1024
    • C) 2047
    • D) 2048
    AnswerCorrect: Option A. Explanation: 2¹⁰ = 1024 → 1024–1 = 1023.
  24. A man rows 12 km downstream in 3 h and upstream in 6 h. Speed of current is:

    • A) 1 km/h
    • B) 1.5 km/h
    • C) 2 km/h
    • D) 2.5 km/h
    AnswerCorrect: Option A. Explanation: Down speed = 4 km/h, up = 2 km/h → (4–2)/2 = 1 km/h.
  25. The diagonal of a square field is 20 m. Its area is:

    • A) 200 m²
    • B) 400 m²
    • C) 100 m²
    • D) 300 m²
    AnswerCorrect: Option A. Explanation: Area = d²/2 = 400/2 = 200 m².

General Intelligence & Reasoning

  1. Find the odd one out: Tiger, Lion, Cheetah, Leopard

    • A) Tiger
    • B) Lion
    • C) Cheetah
    • D) Leopard
    AnswerCorrect: Option C. Explanation: Cheetah cannot retract claws; also belongs to different genus.
  2. Complete series: 3, 8, 15, 24, 35, ?

    • A) 48
    • B) 46
    • C) 44
    • D) 50
    AnswerCorrect: Option A. Explanation: Pattern +5, +7, +9, +11, +13 → 35+13=48.
  3. If CLOUD is coded as FKRXG, then RAIN coded as:

    • A) UDLQ
    • B) UEMR
    • C) TDLQ
    • D) VENR
    AnswerCorrect: Option A. Explanation: +3, +4, +5, +6 shift → R→U, A→D, I→L, N→Q.
  4. Pointing to a lady, Ram said, “Her mother is the only daughter of my mother-in-law.” How is lady related to Ram?

    • A) Daughter
    • B) Sister
    • C) Wife
    • D) Niece
    AnswerCorrect: Option A. Explanation: Only daughter of mother-in-law is Ram’s wife; hence lady is their daughter.
  5. Find missing number: 2, 6, 12, 20, ?, 42

    • A) 30
    • B) 28
    • C) 32
    • D) 36
    AnswerCorrect: Option A. Explanation: 1×2, 2×3, 3×4… 5×6 = 30.
  6. If ‘+’ means ‘×’, ‘–’ means ‘÷’, ‘×’ means ‘–’ and ‘÷’ means ‘+’, then value of 16 – 4 + 2 ÷ 8 × 4 is:

    • A) 8
    • B) 10
    • C) 12
    • D) 14
    AnswerCorrect: Option B. Explanation: 16 ÷ 4 × 2 + 8 – 4 = 4×2+8–4 = 8+8–4 = 12 → wait; recheck: 16 ÷ 4 = 4; 4 × 2 = 8; 8 + 8 = 16; 16 – 4 = 12 → correct 12 → Option C.
  7. Arrange words: 1. Frog 2. Eagle 3. Grass 4. Grasshopper 5. Snake

    • A) 3,4,1,5,2
    • B) 3,1,4,5,2
    • C) 4,3,1,5,2
    • D) 3,4,5,1,2
    AnswerCorrect: Option A. Explanation: Food-chain order: Grass → Grasshopper → Frog → Snake → Eagle.
  8. In a row, Mohan is 15th from left and 17th from right. Total students?

    • A) 31
    • B) 32
    • C) 30
    • D) 33
    AnswerCorrect: Option A. Explanation: 15+17–1 = 31.
  9. Select pair with same relation as “Doctor : Stethoscope”

    • A) Carpenter : Saw
    • B) Writer : Pen
    • C) Musician : Note
    • D) Chef : Spoon
    AnswerCorrect: Option A. Explanation: Stethoscope is primary diagnostic tool of doctor; saw is of carpenter.
  10. If 1 Nov 2023 is Wednesday, then 25 Dec 2023 is:

    • A) Monday
    • B) Tuesday
    • C) Wednesday
    • D) Thursday
    AnswerCorrect: Option A. Explanation: 54 days → 54 mod 7 = 5 → Wed + 5 = Monday.
  11. Mirror image of figure “R3P” is:

    • A) P3Я
    • B) Я3P
    • C) P3R
    • D) ЯЭР
    AnswerCorrect: Option A. Explanation: Standard mirror reverses left-right.
  12. Statement: All books are pens. Some pens are pencils. Conclusion: I. Some books are pencils. II. Some pencils are pens.

    • A) Only I follows
    • B) Only II follows
    • C) Both follow
    • D) Neither
    AnswerCorrect: Option B. Explanation: II is direct; I is possible but not definite.
  13. Count triangles in given figure (assume simple symmetric star):

    • A) 8
    • B) 10
    • C) 12
    • D) 14
    AnswerCorrect: Option C. Explanation: Standard 6-pointed star has 12 small triangles.
  14. If 5@3 = 16 and 7@4 = 30, then 9@6 =

    • A) 54
    • B) 48
    • C) 45
    • D) 42
    AnswerCorrect: Option B. Explanation: a@b = a² – b = 81–6 = 75 → wait; recheck: 5@3 = 5²–3² = 25–9 = 16; 7@4 = 49–16 = 33 ≠ 30 → alternative: a@b = a² – ab = 25–15=10 ≠16 → better: a@b = a² – b² → 9@6 = 81–36 = 45 → Option C.
  15. Word that cannot be formed from “ENVIRONMENT”:

    • A) MENTOR
    • B) VOTER
    • C) ENTER
    • D) LOVE
    AnswerCorrect: Option D. Explanation: ‘L’ is absent in ENVIRONMENT.
  16. Direction: A walks 10 m North, turns right walks 20 m, turns right walks 20 m. How far from start?

    • A) 10√2 m
    • B) 20 m
    • C) 10 m
    • D) 30 m
    AnswerCorrect: Option C. Explanation: Final position 10 m East of start → distance = 10 m.
  17. Coding–decoding: If FACE = 2135, then BEAD =

    • A) 2145
    • B) 2154
    • C) 2415
    • D) 2514
    AnswerCorrect: Option B. Explanation: Alphabet positions: B=2, E=5, A=1, D=4 → 2154.
  18. Odd pair:

    • A) 4–16
    • B) 6–36
    • C) 8–64
    • D) 5–25
    • E) 7–47
    AnswerCorrect: Option E. Explanation: 7² = 49 ≠ 47.
  19. Series: AZ, BY, CX, DW, ?

    • A) EV
    • B) FU
    • C) EU
    • D) VE
    AnswerCorrect: Option A. Explanation: First letter +1, second –1 → EV.
  20. Venn diagram: Author, Poet, Singer

    • A) Three separate circles
    • B) Poet inside Author, Singer separate
    • C) All intersect
    • D) Author & Poet intersect, Singer inside Poet
    AnswerCorrect: Option C. Explanation: One person can be all three; best shown intersecting.
  21. If 2×3 = 49, 4×5 = 1681, then 3×4 =

    • A) 812
    • B) 144
    • C) 169
    • D) 196
    AnswerCorrect: Option D. Explanation: Pattern (a+b)² → (3+4)² = 49 → no; (a×b)² → 6²=36≠49 → (a²+b²)² → 13²=169 → 3×4 → 9+16=25 → 25²=625 not listed → simpler: (a² + b²) → 4+9=13 → 13²=169 → 3×4 → 9+16=25 → 25²=625 absent → nearest: 3×4 → (3+4)² = 49 → different pattern: (a×b) concatenate reverse → 2×3=6 → 6 reverse 6 → 6²=36 ≠49 → best: (a² + b²)² → 3×4 → (9+16)² = 625 → not given → re-interpret: (a² + b²) → 13 → 13²=169 → Option C.
  22. Select related letter: QT : LO :: SX : ?

    • A) OT
    • B) PT
    • C) NT
    • D) OS
    AnswerCorrect: Option A. Explanation: QT → back 5 each → LO; SX → back 5 → OT.
  23. Calendar: Which year will have same calendar as 2023?

    • A) 2034
    • B) 2030
    • C) 2029
    • D) 2033
    AnswerCorrect: Option A. Explanation: 2023 ordinary; add 11 + 2 leap = 2034.
  24. Statement–assumption: “Join our coaching, success guaranteed.” Assumption: I. Coaching ensures success. II. People want success.

    • A) Only I implicit
    • B) Only II
    • C) Both
    • D) Neither
    AnswerCorrect: Option C. Explanation: Both are implied.
  25. Paper folding: Square sheet folded diagonal, cut at corner; opened shape:

    • A) Triangle
    • B) Square
    • C) Kite
    • D) Four small triangles at corners
    AnswerCorrect: Option D. Explanation: Symmetric cuts produce four small triangular holes.

General Science

  1. The SI unit of electric charge is:

    • A) Ampere
    • B) Coulomb
    • C) Volt
    • D) Ohm
    AnswerCorrect: Option B. Explanation: Coulomb is unit of charge.
  2. Which part of human brain controls breathing?

    • A) Cerebrum
    • B) Cerebellum
    • C) Medulla oblongata
    • D) Hypothalamus
    AnswerCorrect: Option C. Explanation: Medulla has respiratory centre.
  3. The process of conversion of sugar into alcohol is called:

    • A) Fermentation
    • B) Pasteurisation
    • C) Distillation
    • D) Hydrolysis
    AnswerCorrect: Option A. Explanation: Yeast carries alcoholic fermentation.
  4. The chemical formula of washing soda is:

    • A) Na₂CO₃
    • B) NaHCO₃
    • C) NaOH
    • D) NaCl
    AnswerCorrect: Option A. Explanation: Na₂CO₃·10H₂O is washing soda.
  5. Which lens is used to correct myopia?

    • A) Convex
    • B) Concave
    • C) Cylindrical
    • D) Plano-convex
    AnswerCorrect: Option B. Explanation: Concave lens diverges light to shift focus back on retina.
  6. The speed of sound in air at 0 °C is approximately:

    • A) 332 m/s
    • B) 343 m/s
    • C) 330 m/s
    • D) 320 m/s
    AnswerCorrect: Option A. Explanation: 332 m/s at 0 °C.
  7. Which metal is liquid at room temperature?

    • A) Gallium
    • B) Mercury
    • C) Cesium
    • D) Bromine
    AnswerCorrect: Option B. Explanation: Mercury (metal) is liquid at 25 °C.
  8. Photosynthesis takes place in which cell organelle?

    • A) Mitochondria
    • B) Chloroplast
    • C) Ribosome
    • D) Golgi
    AnswerCorrect: Option B. Explanation: Chloroplast contains chlorophyll.
  9. The atomic number of Carbon is:

    • A) 4
    • B) 6
    • C) 12
    • D) 14
    AnswerCorrect: Option B. Explanation: Carbon has 6 protons.
  10. Which disease is caused by deficiency of Vitamin D?

    • A) Scurvy
    • B) Rickets
    • C) Beriberi
    • D) Pellagra
    AnswerCorrect: Option B. Explanation: Rickets in children due to Vit-D deficiency.
  11. The device used to measure electric current is:

    • A) Voltmeter
    • B) Ammeter
    • C) Galvanometer
    • D) Ohmmeter
    AnswerCorrect: Option B. Explanation: Ammeter measures current in amperes.
  12. The unit of force in CGS system is:

    • A) Newton
    • B) Dyne
    • C) Pascal
    • D) Joule
    AnswerCorrect: Option B. Explanation: 1 dyne = 1 g·cm/s².
  13. Which gas is released during photosynthesis?

    • A) CO₂
    • B) O₂
    • C) N₂
    • D) H₂
    AnswerCorrect: Option B. Explanation: Oxygen is evolved from photolysis of water.
  14. The pH of human blood is approximately:

    • A) 6.8
    • B) 7.0
    • C) 7.4
    • D) 8.0
    AnswerCorrect: Option C. Explanation: Slightly alkaline, 7.35–7.45.
  15. Which organ secretes insulin?

    • A) Liver
    • B) Pancreas
    • C) Kidney
    • D) Spleen