Logical Reasoning Mock Test 5 Practice

1. Which clue behaves like a gate in grouping puzzles?

• A. Exactly one of C and D (Correct)
• B. A is tall
• C. B likes cricket
• D. E studies science

Explanation: Exact-one conditions instantly gate the valid choices and remove multiple cases.

2. Using a 3×3 coordinate matrix, how will MON be written if M=21, N=22, O=23?

• A. 21-22-23
• B. 21-23-22 (Correct)
• C. 22-21-23
• D. 23-22-21

Explanation: Write each coordinate in the original order of letters. M = 21, O = 23, N = 22.

3. If A * B means A is the mother of B and B ! C means B is the husband of C, then A is what to C?

• A. Mother
• B. Mother-in-law (Correct)
• C. Aunt
• D. Grandmother

Explanation: A is mother of B. B is husband of C, so A is C's mother-in-law .

4. At sunrise, if a person's shadow is directly behind them, the person is facing:

• A. East (Correct)
• B. West
• C. North
• D. South

Explanation: At sunrise the Sun is in the East, so a person facing East will have the shadow behind them toward the West.

5. What is the next term in 6, 9, 12, 15, ... ?

• A. 16
• B. 17
• C. 18 (Correct)
• D. 19

Explanation: The pattern is constant addition of 3. So the next term is 18 .

6. Which word does NOT belong? Bus, Train, Bicycle, Cloud

• A. Bus
• B. Train
• C. Bicycle
• D. Cloud (Correct)

Explanation: Bus, Train, and Bicycle are modes of transport. A Cloud is a weather phenomenon.

7. How many times are the clock hands in a straight line (0° or 180°) in 24 hours?

• A. 22
• B. 44 (Correct)
• C. 48
• D. 24

Explanation: The hands align (0°) 22 times and are opposite (180°) 22 times in 12 hours, totalling 44 per 12 hours and 44 in 24 hours (the pattern repeats).

8. In a mirror alphabet code (A=Z, B=Y, C=X, …), how is LOVE coded?

• A. OLEV (Correct)
• B. LREV
• C. OLIR
• D. LOEV

Explanation: L↔O, O↔L, V↔E, E↔V. LOVE → OLEV .

9. Argument: 'Social media overuse leads to depression in teenagers.' Which strengthens it?

• A. Some teenagers are happy on social media
• B. Teenagers who limit social media report lower depression scores (Correct)
• C. Social media connects people
• D. Depression existed before social media

Explanation: Showing that reducing social media use correlates with less depression strengthens the causal claim.

10. Proposition: 'Should there be a tax on sugar-sweetened beverages?' Argument: 'Yes, because doctors like healthy diets.' Is this strong or weak?

• A. Strong
• B. Weak (Correct)
• C. Moderately strong
• D. Strong in context

Explanation: What doctors prefer generally is not a direct argument for a sugar tax. The argument lacks a specific causal link. It is weak .

11. What is the best scratch-work structure for selection puzzles?

• A. Long paragraph notes
• B. Must In / Must Out / Conditional columns (Correct)
• C. Only a final answer line
• D. A pie chart

Explanation: This structure keeps restrictions visible and reduces mental overload.

12. Using a 3×3 coordinate matrix, how will PQR be written if P=31, Q=32, R=33?

• A. 31-32-33 (Correct)
• B. 33-32-31
• C. 31-33-32
• D. 32-31-33

Explanation: Keep the original order: P, Q, R.

13. What is the safest first step in a coded blood relation problem?

• A. Guess the answer from the names
• B. Decode each symbol separately (Correct)
• C. Read the options first
• D. Assume every symbol means parent

Explanation: Coded relation questions become solvable only after the symbols are translated into normal relations.

14. Each adjacent subdirection on the 8-point compass differs by:

• A. 30°
• B. 45° (Correct)
• C. 60°
• D. 90°

Explanation: The 8-point compass divides the circle into 45° steps.

15. Find the missing term: 4, 8, 12, ?, 20

• A. 14
• B. 16 (Correct)
• C. 18
• D. 22

Explanation: The series increases by 4 each step. So the missing term is 16 .

16. Which word does NOT belong? Lion, Tiger, Leopard, Eagle

• A. Lion
• B. Tiger
• C. Leopard
• D. Eagle (Correct)

Explanation: Lion, Tiger, and Leopard are big cats. An Eagle is a bird.

17. What is the reflex angle between clock hands at 7:30?

• A. 195° (Correct)
• B. 165°
• C. 345°
• D. 315°

Explanation: θ = |11×30/2 − 30×7| = |165 − 210| = 45°. Reflex angle = 360° − 45° = 315° . Wait — reflex of 45° is 360−45 = 315°. Answer: 315° .

18. On a standard die, which face is opposite to 1?

• A. 2
• B. 4
• C. 5
• D. 6 (Correct)

Explanation: On a standard die, opposite pairs are 1-6, 2-5, 3-4. Face opposite to 1 is 6 .

19. Argument: 'Banning plastic bags will significantly reduce ocean pollution.' Which weakens it?

• A. Plastic bags are lightweight and convenient
• B. Plastic bags constitute less than 1% of ocean plastic waste (Correct)
• C. Ocean pollution is increasing
• D. Reusable bags are better

Explanation: If plastic bags are a tiny fraction of ocean pollution, banning them will have minimal impact — this weakens the argument.

20. Proposition: 'Should schools start later in the morning?' Argument: 'Yes, research shows teenagers need more sleep and later start times improve academic performance.' Is this strong or weak?

• A. Strong (Correct)
• B. Weak
• C. Irrelevant
• D. Partially weak

Explanation: Research-backed reasoning directly supporting the proposition makes this a strong argument.

21. Which clue type should normally be placed first?

• A. Color preference
• B. Fixed extreme seat (Correct)
• C. General comparison
• D. Occupation

Explanation: Strong placement clues such as extremes are the best starting anchors.

22. Using a 3×3 coordinate matrix, how will QNM be written if Q=32, N=22, M=21?

• A. 32-22-21 (Correct)
• B. 32-21-22
• C. 21-22-32
• D. 22-32-21

Explanation: Read each letter in sequence: Q, N, M.

23. In many coded relation chains, the safest reading direction is:

• A. from the answer choices
• B. from the most stable known relation end (Correct)
• C. from the longest symbol
• D. from the left only

Explanation: Reading from the most stable end often reduces confusion about generation and direction.

24. What is the most reliable visual tool for this chapter?

• A. A family tree
• B. An algebra table
• C. A compass sketch (Correct)
• D. A number line

Explanation: Direction questions become much easier when converted into a compass-based route sketch.

25. What comes next: 2, 6, 18, 54, ... ?

• A. 108
• B. 144
• C. 162 (Correct)
• D. 216

Explanation: Each term is multiplied by 3. So the next term is 162 .

26. Which word does NOT belong? Joyful, Elated, Cheerful, Anxious

• A. Joyful
• B. Elated
• C. Cheerful
• D. Anxious (Correct)

Explanation: Joyful, Elated, and Cheerful all express happiness. Anxious expresses worry or fear.

27. The minute hand gains how many degrees over the hour hand in one minute?

• A. 5°
• B. 5.5° (Correct)
• C. 6°
• D. 0.5°

Explanation: Minute hand: 6°/min; hour hand: 0.5°/min. Relative gain = 6 − 0.5 = 5.5° per minute.

28. Two positions of a dice are shown. Position 1: top=1, front=2. Position 2: top=2, front=3. Which face is opposite to face 3?

• A. 1 (Correct)
• B. 4
• C. 5
• D. 6

Explanation: From position 1: 1 is opposite to the bottom. From position 2: 2 is on top, 3 is in front. When 2 is on top, 1 must be on bottom (from pos 1 logic). So 3 (front) is opposite to 1 (back... actually opposite via standard analysis = 1).

29. Argument: 'Higher minimum wage reduces employee turnover.' Which most strengthens this?

• A. Employees prefer high wages
• B. Companies paying above minimum wage report 20% lower turnover rates (Correct)
• C. Minimum wage varies by region
• D. Employee satisfaction depends on many factors

Explanation: Concrete data showing higher wages correlate with lower turnover directly strengthens the argument.

30. Proposition: 'Should private companies be allowed to mine on the moon?' Argument: 'No, because the moon has always been admired from Earth.' Is this argument strong or weak?

• A. Strong
• B. Weak (Correct)
• C. Moderately relevant
• D. Strong emotionally

Explanation: Sentimental admiration is not a practical or legal policy reason. This argument is weak .

31. A completed arrangement should be used to:

• A. ignore the question
• B. answer all linked sub-questions (Correct)
• C. rewrite the puzzle
• D. change the clues

Explanation: The whole set should be solved once and then reused for linked questions.

32. If opposite-letter coding is used, how will MOON be coded?

• A. NLLM (Correct)
• B. NOOM
• C. MLLN
• D. NPPO

Explanation: $M\to N$, $O\to L$, $O\to L$, $N\to M$.

33. Which phrase sharply reduces the possible family tree?

• A. a relative
• B. only son (Correct)
• C. a person
• D. known member

Explanation: Only son is a strong limiting phrase because it blocks alternative male children.

34. Which direction is opposite to North?

• A. East
• B. West
• C. South (Correct)
• D. North-East

Explanation: North and South are opposite directions.

35. Find the next number: 1, 4, 9, 16, 25, ... ?

• A. 30
• B. 35
• C. 36 (Correct)
• D. 49

Explanation: These are consecutive squares: 1^2, 2^2, 3^2, 4^2, 5^2. The next is 6^2 = 36 .

36. Which word does NOT belong? Stable, Den, Kennel, Vessel

• A. Stable
• B. Den
• C. Kennel
• D. Vessel (Correct)

Explanation: Stable, Den, and Kennel are all animal resting places. A Vessel is a container or ship.

37. At what time between 5 and 6 o'clock are the hands at right angles for the first time?

• A. 5:05:27
• B. 5:10:54 (Correct)
• C. 5:43:38
• D. 5:49:5

Explanation: Minute hand must gain (150−90)=60° over hour hand from 5:00. Time = 60/(5.5) ≈ 10.9 min → 5:10:54 .

38. A dice net has faces arranged in a cross (+) shape. The centre face shows 5. Which face will be opposite to 5 when folded?

• A. The top face of the cross (Correct)
• B. The bottom face of the cross
• C. The left face
• D. The right face

Explanation: In a standard cross-shaped net, the face directly opposite the centre (5) is the one farthest away in the vertical strip, which is the top face of the cross .

39. Argument: 'Installing more streetlights reduces crime.' Which most weakens this?

• A. Streetlights are expensive
• B. Areas with the most streetlights had the highest crime rates in 5 cities studied (Correct)
• C. Dark streets feel unsafe
• D. Criminals prefer less visibility

Explanation: This shows the opposite correlation, which significantly weakens the argument.

40. Proposition: 'Should government subsidise electric vehicles (EVs)?' Argument: 'Yes, because EVs reduce air pollution and dependence on fossil fuels.' Is this strong or weak?

• A. Strong (Correct)
• B. Weak
• C. Partially strong
• D. Ambiguous

Explanation: Environmental and energy security reasons are practical, relevant, and widely accepted. This is a strong argument.

41. What is the safest reminder before solving a South-facing row?

• A. Rows are easy
• B. Reverse left and right (Correct)
• C. Only use middle clues
• D. Ignore extremes

Explanation: This is the key directional reminder for South-facing linear sets.

42. A word is split into odd-place and even-place letters, both parts are reversed, and the odd-place part is written first. How will POCKET be coded?

• A. PCEOKT
• B. OKTPCE
• C. TEKCOP
• D. ECPTKO (Correct)

Explanation: Odd-place letters: P, C, E → reverse to ECP. Even-place letters: O, K, T → reverse to TKO. Combine: ECPTKO.

43. Maternal uncle means:

• A. father's brother
• B. mother's brother (Correct)
• C. mother's sister
• D. father's sister

Explanation: Maternal relates to the mother's side, so maternal uncle is mother's brother.

44. Which direction is opposite to East?

• A. North
• B. West (Correct)
• C. South
• D. North-West

Explanation: East and West are opposite directions.

45. Find the next term: 3, 5, 8, 12, 17, ... ?

• A. 21
• B. 22
• C. 23 (Correct)
• D. 24

Explanation: The differences are +2, +3, +4, +5. Next difference is +6, so the answer is 23 .

46. Which word does NOT belong? Iron, Copper, Bronze, Platinum

• A. Iron
• B. Copper
• C. Bronze (Correct)
• D. Platinum

Explanation: Iron, Copper, and Platinum are pure metallic elements. Bronze is an alloy (a mixture of copper and tin).

47. How many times do the hour and minute hands coincide (overlap) in 12 hours?

• A. 11 (Correct)
• B. 12
• C. 22
• D. 24

Explanation: The hands overlap 11 times in every 12-hour period (the noon/midnight overlap is shared). Answer: 11 .

48. In the matrix: [2, 4, 8], [3, 6, 12], [4, 8, ?]. What is the missing number?

• A. 12
• B. 16 (Correct)
• C. 14
• D. 18

Explanation: Each row: col3 = col1 × col2 / col1... Pattern: each number doubles: 2,4,8; 3,6,12; 4,8, 16 .

49. Argument: 'Reading fiction improves empathy.' Which strengthens this?

• A. Fiction is entertaining
• B. Brain scans show increased empathy-related activity after fiction reading (Correct)
• C. Non-fiction is more informative
• D. Some people dislike reading

Explanation: Neurological evidence directly strengthens the claim about fiction and empathy.

50. Proposition: 'Should smoking be banned in all public places?' Argument: 'Yes, because passive smoking causes serious health problems to non-smokers.' Is this strong or weak?

• A. Strong (Correct)
• B. Weak
• C. Ambiguous
• D. Irrelevant

Explanation: Protecting non-smokers from harm is a direct, evidence-backed justification for the ban. It is strong .