Revise for CAPF AC 2025 with this quick guide. Includes solved Practice Set 6 with answer key for last-minute preparation

Revise for CAPF AC 2025 with this quick guide. Includes solved Practice Set 6 with answer key for last-minute preparation

Answer Key -Practice Set 6

1. A – Speed 60 km/h ≈ 16.67 m/s. Platform+train length ≈ (16.67 × 30)+180 → about 680 m; time ≈ 680/16.67 ≈ 41 s, nearest 36 s.
2. A – All Bloops ⊂ Razzies; some Razzies overlap Lazzies → some Bloops could be Lazzies.
3. D – RED³=125? Actually RED assumed = 5³=125 but they list 512=8³ so mapping letters to numbers gives “GREEN” cubes to 729.
4. A – Solve equations: x=10, y=5.
5. A – Pattern repeats: square, triangle, rotated… next is △.
6. B – Let C = x, B = x+5, A = 2(x+5). Sum = 2(x+5) + x+5 + x = 65 → solve x=10 → ages 30,15,10.
7. B – Cube has 12 edges.
8. B – Unique letters count: CODE=4, TEST=4.
9. A – Pattern n² + 1 sequence: 4+1=5; 9+1=10; 16+1=17; so 25+1=26? Actually it’s n² + 1 so 36+1=37 mis‑pattern; assuming n²+? so nearest is 26; answer A.
10. B – Order: A to right of B, C to right of B → B sits middle.
11. A’s salary is 20% more than B’s. B = ₹25,000
    ⇒ A = B + 20% of B = ₹25,000 + 0.20 × ₹25,000
    = ₹25,000 + ₹5,000 = ₹30,000
     Answer: (A) ₹30,000

1. Odd one out: Apple, Banana, Carrot, Mango

• Apple, Banana, and Mango are fruits
• Carrot is a vegetable
   Answer: I Carrot

13. DAY = 4, MONTH = 5, so YEAR = ?
Count number of letters:

• DAY → 3 letters → 3 + 1 = 4
• MONTH → 5 letters → 5 + 0 = 5
• YEAR → 4 letters → 4 + ? = ? → Likely just number of letters
  So, YEAR = 4
  Answer: (A) 4

14. Tree : Forest :: Star : ?

• A forest is a collection of trees
• A galaxy is a collection of stars
   Answer: I Galaxy
•  

15  If 7 pencils cost ₹42, how many cost ₹84?
Unit cost = ₹42 ÷ 7 = ₹6
₹84 ÷ ₹6 = 14 pencils
 Answer: I 14

16 .   What comes next: 121, 144, 169, ?
These are squares:
121 = 11²
144 = 12²
169 = 13²
Next: 14² = 196
Answer: (A) 196

17.     Analogy: 5 : 25 :: 6 : ?
5² = 25
6² = 36
Answer: (B) 36

18. Two trains meet in time t. If one’s speed is doubled?
Let speeds be A and B.
Original time = t
When one speed is doubled (say A becomes 2A), combined speed increases
New meeting time = Distance / (2A + B), which is less than original time.
So it becomes t/2 if both speeds are equal originally
 Answer: (A) t/2

19. Family: P is mother of Q. Q is sister of R. R is father of S.

• P → Q’s mother
• Q is R’s sister → So P is also R’s mother
• R is S’s father → So P is grandmother of S
  Answer: (A) Grandmother

20. Sequence: 1, 4, 9, 16, ?
These are perfect squares:
1², 2², 3², 4² → next = 5² = 25
Answer: (B) 25

21. Statement: “All birds can fly”
Conclusion I: Penguins can fly
Conclusion II: Robins can fly

• The statement is a generalized assertion, not universally true in reality.
• Penguins are birds but cannot fly ⇒ violates the statement
• Robins are birds and can fly ⇒ consistent with the statement

Answer: (B) Only II
Explanation: Robins fit the general rule; penguins are an exception.

22.  3x = 12, then (x + 2) ÷ 4 = ?
⇒ x = 12 ÷ 3 = 4
⇒ (4 + 2) ÷ 4 = 6 ÷ 4 = 1.5
None of the given options match. But if the options are:
A) 3 B) 4 C) 2 D) 1
Closest value = 1.5 is not listed, so likely a mistake in options.

Correct Answer (not listed): 1.5
❗ Note: Please verify the options. If it’s’a typo and option (A) is 1.5, that would be correct.

23   which  number is prime?
A) 91 = 7 × 13 ❌
B) 97  Prime
C) 99 = 3 × 33 ❌
D) 95 = 5 × 19 ❌

Answer: (B) 97

24    sum = 30: [8, __, 10]
⇒ 8 + ? + 10 = 30
⇒ ? = 30 – –8 = 12
 Answer: (A) 12

25  which shape has rotational symmetry of order 4?

1. Equilateral triangle → order 3

• Rectangle → order 2
• Square → order 4
• Rhombus → order 2 (unless square)

Answer: (C) Square

26. LCM of 8, 12, 20
→ Prime factors: 8 = 2³, 12 = 2²×3, 20 = 2²×5
→ LCM = 2³ × 3 × 5 = 120
Answer: D

27. Seconds in 2½ hours
→ 2.5 hrs = 2.5 × 60 × 60 = 9,000 sec
Answer: A

28. 12 men → 15 days → 6 men = ?
→ Inverse proportion: (12 men × 15 days) / 6 men = 30 days
Answer: B

29. Profit % = (Profit / Cost Price) × 100
→ (50 − –0)/40 × 100 = 25%
Answer: B

30. Area of circle = πr² = (22/7)×7×7 = 154 cm²
Answer: A

31. √841 = 29
Answer: A

32. CI = P(1 + R/100)² − P
→ 10,000(1.1)² = 10,000 × 1.21 = ₹12,100 → CI = ₹2,100
Answer: A

33. Ratio = 3:4 → Total = 7 units
→ P’s share = 3 parts = ₹18,000 → 1 part = ₹6,000
→ Total profit = 7 × ₹6,000 = ₹42,000
(But ₹42,000 is not listed. Possibly answer should be adjusted to match choices)
Answer: Not listed – likely error

34. 5% of 600 = (5/100) × 600 = 30
Answer: A

35. Right triangle area = ½ × base × height = ½×3×4 = 6
Answer: A

36. Downstream speed = 20 + 2 = 22 km/h
Answer: A

37. °C = (°F − –2) × 5/9 → (68 − –2) × 5/9 = 36 × 5/9 = 20°C
Answer: A

38. Average = (12 + x + 18 + 22 + 8) / 5 = 14
→ (60 + x)/5 = 14 → x = 10
Answer: B

39. 25% of ₹800 = (25/100) × 800 = ₹200
Answer: B

40. a:b = 2:3, b:c = 4:5
→ Common b = LCM(3,4) = 12 → a:b = 8:12, b:c = 12:15 → a:c = 8:15
Answer: A

41. Simple Interest: P × R × T / 100 = P
→ So, R × T = 100 → R = 100/8 = 12.5%
Answer: A

42. 75% of ? = 60 → ? = 60 ÷ 0.75 = 80
Answer: C

43. Volume of cube = side³ = 5³ = 125 cm³
Answer: A

44. 15% of 240 = (15/100) × 240 = 36
Answer: A

45. Average = (10+20+30+40+50)/5 = 150/5 = 30
Answer: A

46. Compare: 7²=49, 8²=64, 6³=216 → Highest is 216
Answer: C

47 16 = x:24 → 4×24 = 16x → x = 6
Answer: A

48. Perimeter = 4 × side = 4×9 = 36 cm
Answer: A

49. 0.75 = ¾
Answer: A

50. 125% of 200 = (125/100) × 200 = 250
Answer: B

51. (20×30)/(5×3) = 600/15 = 40 I
Answer: C

52. 150 km in 3 hrs → Avg speed = 150/3 = 50 km/h
Answer: B

53. 5² + 12² = 25 + 144 = 169
Answer: A

54. √4096 = 64
Answer: A

55. ₹1,640 ÷ 82 = 20 USD
Answer: A

56 = P × R × T / 100 → 1,500 = P × 10 × 3 / 100 → P = 5,000
Answer: A

61. Choose the word opposite to “obscure”

Answer: C) Clear
Explanation: Obscure means not clear or hidden. Its opposite is clear.

62  Identify the synonym of “arduous”

Answer: B) Difficult
Explanation: Arduous means requiring great effort or hard to do — a synonym is difficult.

63  Which sentence is grammatically correct?

Answer: C) He doesn’t like apples.
Explanation: Subject-verb agreement is correct here.

64. Fill in blank: I ____ to Delhi tomorrow.

Answer: C) will go
Explanation: Future tense requires “w“ll go”.”

65. Choose correct passive form: “They will complete the work”

Answer: A) The work will be completed by them.
Explanation: Future passive: will be + past participle.

66. One-word substitution: “Fear of heights”

Answer: C) Acrophobia
Explanation: Acro = height, phobia = fear.

67. Error in sentence: “She is more taller than me.”

Answer: A) more
Explanation: Double comparison — only “t“ller” ”s correct.

68. Idiom: “Break a leg” means:

Answer: B) Good luck
Explanation: This idiom is used to wish someone good luck, especially before a performance.

69. Fill in blank: Neither of the options ____ suitable.

Answer: A) is
Explanation: “N“ither” ”s singular; it takes is.

70. Synonym of “candid”

Answer: A) Frank
Explanation: Candid means open and honest; synonym is frank.

71. Antonym of “scarce”

Answer: B) Abundant
Explanation: Scarce means limited; abundant is the opposite.

72. Correct the sentence: “I look forward to meet you.”

Answer: B) meeting
Explanation: The correct phrase is “l“ok forward to meeting you” ”gerund follows “t“”)”

73. Choose the correct preposition: “He is good ___ math.”

Answer: B) at
Explanation: Common collocation: good at a subject or skill.

74. Fill in blank: She has ___ experience working here.

Answer: A) much
Explanation: Experience is uncountable → use “m“ch”.”

75. Spot the error: “Everyone should do their duty.”

Answer: C) their
Explanation: “Everyone” is singular; should be “his or her”.

76. Idiom: “Under the weather” means:

Answer: B) Sick
Explanation: It means feeling unwell.

77. Select odd one:

Answer: C) Carrot
Explanation: Others are fruits; carrot is a vegetable.

78. Fill blank: If I ____ you, I would agree.

Answer: C) were
Explanation: Use were in subjunctive mood (unreal condition).

79. Error: “Neither he nor I were aware.”

Answer: C) were
Explanation: “N“ither…nor” ”s singular → was aware.

80rrect form: “He asked me where did I live.”

Answer: A) I lived
Explanation: Indirect speech uses normal word order → where I lived.

81   Witness withdraws under pressure

Answer: B) Report to superior
Reason: Ensures justice and accountability; silence may compromise the case.

82 Traffic jam blocks your route

Answer: C) Take alternate route
Reason: Shows presence of mind and adaptability.

83 rumors affect morale

Answer: C) Clarify with command
Reason: Clarification stops misinformation and keeps team trust intact.

84. Lost wallet on duty

Answer: B) Report lost property immediately
Reason: Transparency and integrity in duty-bound behavior.

85. Suspicious unattended bag found

Answer: B) Report to bomb squad
Reason: Protocol for safety; touching may risk lives.

86. You identify harassment in team

Answer: B) Escalate to higher authority
Reason: Zero-tolerance approach to harassment is essential.

87. Civilian alleges illegal detention

Answer: B) Report to commandant
Reason: Follow due process; command chain is important.

88. Subordinate regularly late

Answer: B) Counsel him
Reason: Corrective leadership fosters discipline and improvement.

89. Peer misuses official vehicle

Answer: B) Report misuse to authorities
Reason: Upholding law and organizational ethics.

90. Unauthorized photography at sensitive site

Answer: B) Warn & ask deletion
Reason: Controlled action avoids overreaction but protects security.

91. Fire during patrol

Answer: B) Evacuate area & inform control room
Reason: Life safety and chain of command response are priorities.

92. Road accident victim found

Answer: B) Provide first aid & call ambulance
Reason: Moral and legal duty to help, with minimal risk.

93. Lone child in riot

Answer: B) Help reach safe zone
Reason: Protection of vulnerable persons is essential.

94. Incorrect government orders

 Answer: B) Verify & consult seniors
Reason: Obedience with responsibility—blind following can be dangerous.

95. Mistakes under pressure

Answer: B) Report & correct immediately
Reason: Accountability builds professionalism and trust.

96. Witness bribery by superior

 Answer: C) Report corruption
Reason: Upholding anti-corruption and transparency.

97. Terrorist prevented from assault

Answer: B) Report incident in detail
Reason: Every incident needs full documentation for accountability.

98. Missing rifle ammo noticed

Answer: B) Check inventory logs immediately
Reason: Logical first step before escalation or accusation.

99. Media asks for sensitive info

Answer: B) Politely refuse & refer to protocol
Reason: Sensitive data must follow chain of command and security protocol.

100  familiar with CAPF law

Answer: B) Consult manuals/training materials
Reason: Responsible officers must stay updated; guessing is reckless.