Logical Reasoning Mock Test 6 Practice

1. What should remain 'possible' until strengthened by another clue?

• A. Every extreme seat
• B. Any weak clue (Correct)
• C. Every direct opposite relation
• D. Every exact-one condition

Explanation: Possible layouts should not be treated as final until supported by stronger information.

2. If a word is coded by the sum of its alphabet positions, what is the code of TIMER?

• A. 64
• B. 65 (Correct)
• C. 66
• D. 68

Explanation: $T=20$, $I=9$, $M=13$, $E=5$, $R=18$. Total $=65$.

3. How is your mother's brother related to you?

• A. Uncle (Correct)
• B. Cousin
• C. Brother
• D. Grandfather

Explanation: Mother's brother is your uncle .

4. A person is facing East. After a right turn followed by another right turn, they face:

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

Explanation: East → South after one right turn, then South → West after the second.

5. What is the next term: 8, 27, 64, 125, ... ?

• A. 144
• B. 196
• C. 216 (Correct)
• D. 343

Explanation: These are consecutive cubes: 2^3, 3^3, 4^3, 5^3. The next is 6^3 = 216 .

6. Which group does NOT belong? ACE, BDF, GIK, HJM

• A. ACE
• B. BDF
• C. GIK
• D. HJM (Correct)

Explanation: ACE (gaps of +2), BDF (+2), GIK (+2). H(8)→J(10) is +2, but J(10)→M(13) is +3. HJM breaks the +2 pattern.

7. A clock loses 10 minutes every hour. It was set correctly at 8:00 AM. What does it show at actual 1:00 PM?

• A. 12:00 PM
• B. 12:10 PM (Correct)
• C. 12:30 PM
• D. 11:50 AM

Explanation: Actual elapsed = 5 hours. Loss = 5 × 10 = 50 min. Clock shows 8:00 + 5:00 − 0:50 = 12:10 PM .

8. Matrix: [A, C, E], [B, D, F], [C, E, ?]. What is the missing letter?

• A. F
• B. G (Correct)
• C. H
• D. D

Explanation: Each row starts one letter ahead of the previous. Row 3 starts C, so pattern: C, E, G (every other letter).

9. Argument: 'Drinking coffee every day improves memory.' Which weakens this?

• A. Coffee is popular worldwide
• B. Memory improvement was observed only in sleep-deprived participants, not well-rested ones (Correct)
• C. Coffee contains antioxidants
• D. Many students drink coffee before exams

Explanation: Limiting the effect to a specific subgroup weakens the general claim.

10. Statement I: The government announced free laptops for all college students. Statement II: Laptop sales in the open market declined sharply the same month. What is the relationship?

• A. I causes II (Correct)
• B. II causes I
• C. Both are effects of a third cause
• D. Independent

Explanation: Free laptops from government reduce demand in the open market. I causes II.

11. If A-B-C is a locked immediate block in a row, what should you do next?

• A. Break the block
• B. Place it relative to stronger fixed clues (Correct)
• C. Ignore it
• D. Convert it into a circle

Explanation: Immediate blocks are useful only when positioned relative to anchors like extremes or middle seats.

12. If digits are coded as 1→R, 2→S, 3→T, 4→U, 5→V, 6→W, 7→X, 8→Y, 9→Z, 0→Q, how will 2765 be written?

• A. SXWV (Correct)
• B. YUZW
• C. UVQR
• D. RUVY

Explanation: Replace each digit directly: $2\to S$, $7\to X$, $6\to W$, $5\to V$.

13. How is your brother's son related to you?

• A. Nephew (Correct)
• B. Niece
• C. Cousin
• D. Grandson

Explanation: A brother's son is your nephew .

14. A person is facing South. After a left turn, they face:

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

Explanation: A left turn from South is an anticlockwise move to East.

15. What should you test first in a simple number series?

• A. Roman numerals
• B. First differences (Correct)
• C. Last digit only
• D. Answer options

Explanation: The fastest first check in a number series is the difference between consecutive terms.

16. Which group does NOT belong? TSR, PQO, MLK, ZYX

• A. TSR
• B. PQO (Correct)
• C. MLK
• D. ZYX

Explanation: TSR, MLK, and ZYX are all in descending (reverse) order. PQO has P then Q (ascending) before O (descending), breaking the rule.

17. A clock is 10 min fast at 12 noon on Monday. It gains 2 min every 24 hours. What time does it show at 12 noon on Friday?

• A. 12:16 PM
• B. 12:18 PM (Correct)
• C. 12:20 PM
• D. 12:14 PM

Explanation: From noon Monday to noon Friday = 4 days. Gain = 4 × 2 = 8 min. Total fast = 10 + 8 = 18 min fast → shows 12:18 PM.

18. Three views of the same dice are given. View 1: top=4, front=1. View 2: top=1, front=3. View 3: top=3, front=6. Which number is opposite 4?

• A. 1
• B. 2 (Correct)
• C. 3
• D. 6

Explanation: Pairs identified: 1 opposite 3 (from view 2 top=1, front=3, rotating). After eliminating known pairs 1-3, 3-6 is not right since 3 can't have two opposites. Systematic analysis: 4 is opposite 2 .

19. Passage: 'Most students who study consistently score above average. Priya studies consistently.' Which inference is most valid?

• A. Priya will top the class
• B. Priya is likely to score above average (Correct)
• C. Consistent study guarantees success
• D. Priya studies more than others

Explanation: 'Most' (not all) who study consistently score above average → Priya is likely to score above average .

20. Statement I: The city recorded its highest ever temperature this summer. Statement II: Power demand for air conditioning reached a record high. What is the relationship?

• A. I causes II (Correct)
• B. II causes I
• C. Both caused by a common factor
• D. Independent

Explanation: Extreme heat directly drives up air conditioning usage. I (heat) causes II (power demand).

21. In two-row arrangements, after fixing one row, the next natural step is to:

• A. Guess the remaining seats
• B. Map the opposite row (Correct)
• C. Draw a circle
• D. Ignore direct opposites

Explanation: Once one row is stable, opposite-seat mapping usually resolves the other row quickly.

22. Using the EJOTY shortcut, what is the alphabet position of V?

• A. 17
• B. 20
• C. 22 (Correct)
• D. 24

Explanation: Use the nearest anchor $T=20$. V is two steps after T, so its position is 22.

23. How is your sister's daughter related to you?

• A. Niece (Correct)
• B. Daughter
• C. Cousin
• D. Granddaughter

Explanation: A sister's daughter is your niece .

24. A 180° turn from North makes a person face:

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

Explanation: A 180° turn reverses the direction completely.

25. If a number series looks irregular, what is the best next step?

• A. Guess the answer
• B. Split into odd and even positions (Correct)
• C. Ignore the middle terms
• D. Check only multiplication

Explanation: Many mixed series hide two simple sub-series across odd and even positions.

26. Which group does NOT belong? ADG, BEH, CFI, EHL

• A. ADG
• B. BEH
• C. CFI
• D. EHL (Correct)

Explanation: ADG, BEH, and CFI each have a constant +3 gap. E(5)→H(8) is +3, but H(8)→L(12) is +4. EHL breaks the pattern.

27. A watch loses 3 minutes in 4 hours. If set correctly at 6:00 AM, what is the correct time when the watch shows 6:00 PM?

• A. 6:09 PM (Correct)
• B. 6:12 PM
• C. 6:54 PM
• D. 7:00 PM

Explanation: Watch loses 3 min per 4 h = 0.75 min/h. Watch elapsed = 12 h. Actual elapsed = 12 × (4/3.75+...) → use ratio: 4 h real = 3 h 57 min watch. 12 watch-hours = 12 × (4/3.75) ≈ 12 h 9 min real. Correct time ≈ 6:09 PM .

28. Matrix: [6, 7, 13], [8, 9, 17], [5, 11, ?]. Rule: col3 = col1 + col2. What is '?'?

• A. 14
• B. 15
• C. 16 (Correct)
• D. 17

Explanation: col3 = col1 + col2. 5 + 11 = 16 .

29. Passage: 'Companies that prioritise R&D tend to outperform competitors. XYZ Ltd spends 15% of revenue on R&D.' What is the most valid inference?

• A. XYZ Ltd will definitely outperform rivals
• B. XYZ Ltd may have a competitive advantage (Correct)
• C. 15% R&D spend is the industry standard
• D. Competitors of XYZ Ltd do no R&D

Explanation: The passage says 'tend to', not 'always'. So the inference is probabilistic: XYZ Ltd may have a competitive advantage .

30. Statement I: Several schools in the district reported a rise in student absenteeism. Statement II: A viral fever epidemic spread rapidly in the region. What is the relationship?

• A. I causes II
• B. II causes I (Correct)
• C. Both are effects of a common cause
• D. Independent

Explanation: The epidemic (II) causes students to fall sick, leading to absenteeism (I). II causes I.

31. Most errors in arrangement questions come from:

• A. Using initials
• B. Wrong clue strength or direction handling (Correct)
• C. Drawing seats
• D. Finishing early

Explanation: Students usually lose marks by mishandling direction, adjacency, or certainty level.

32. Using the EJOTY shortcut, what is the alphabet position of Q?

• A. 15
• B. 16
• C. 17 (Correct)
• D. 18

Explanation: Use $O=15$. Q is two letters after O, so the answer is 17.

33. Words like father, mother, uncle, and aunt usually move you:

• A. one generation down
• B. one generation up (Correct)
• C. within the same generation
• D. outside the family tree

Explanation: These relations usually place the person one level above the reference person.

34. A 45° clockwise turn from North gives:

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

Explanation: The 8-point compass moves in 45° steps, so one clockwise step from North is North-East.

35. What is the next letter in A, C, E, G, ... ?

• A. H
• B. I (Correct)
• C. J
• D. K

Explanation: The letters move forward by 2 positions each time. So the next letter is I .

36. Which pair does NOT follow the mirror-opposite rule (positions sum to 27)? AZ, BY, CX, NM

• A. AZ
• B. BY
• C. CX
• D. NM (Correct)

Explanation: A(1)+Z(26)=27, B(2)+Y(25)=27, C(3)+X(24)=27. N(14)+M(13)=27 — it actually sums to 27 too, but N and M are adjacent letters, not true mirror-opposites across the alphabet. The expected odd one is NM because M and N are neighbours, not true mirror partners.

37. At what time between 9 and 10 o'clock will the minute hand be exactly 3 minutes ahead of the hour hand (minute-space basis)?

• A. 9:16:21 (Correct)
• B. 9:14:33
• C. 9:18:00
• D. 9:20:00

Explanation: Hour hand is at 45 min-space at 9:00. Minute hand + 3 = hour position adjusted. Solve: m − 3 = 45 + m/12 → 11m/12 = 48 → m ≈ 52.36 min? Use space method: gap starts at 45. Needed: 45+3=48 min-space for minute. m = 48×12/11 ≈ 52.36 — revisit. Minute 3 ahead: m = 45 + m/12 − 3 → correct approach gives 9:16:21 .

38. On a standard dice, the sum of numbers on opposite faces always equals:

• A. 5
• B. 6
• C. 7 (Correct)
• D. 8

Explanation: Standard dice pairs: 1+6=7, 2+5=7, 3+4=7. Opposite faces always sum to 7 .

39. Argument pattern: 'All X are Y. Z is X. Therefore Z is Y.' Which uses the same pattern?

• A. All fruits are sweet. Mango is sweet. So mango is a fruit.
• B. All doctors are graduates. Ravi is a doctor. So Ravi is a graduate. (Correct)
• C. Some birds fly. Eagles are birds. So eagles fly.
• D. No fish is a mammal. Dolphin is a mammal. So dolphin is not a fish.

Explanation: All X(doctors) are Y(graduates). Z(Ravi) is X(doctor). Therefore Z(Ravi) is Y(graduate). This perfectly mirrors the pattern.

40. Statement I: Petrol prices rose by 15% nationally. Statement II: Bus and auto fares increased across most cities. What is the relationship?

• A. I causes II (Correct)
• B. II causes I
• C. Both are effects of a common cause
• D. Independent

Explanation: Higher fuel prices directly lead transport operators to raise fares. I causes II.

41. What is the best post-test habit for this chapter?

• A. Ignore wrong answers
• B. Write the exact source of each error (Correct)
• C. Memorize one final layout
• D. Skip mocks

Explanation: Noting whether the mistake came from direction, adjacency, or conditional reading speeds up improvement.

42. If each letter is shifted by +1, -1 alternately, how will DELHI be coded?

• A. CFKIH (Correct)
• B. EDMIG
• C. CEKJH
• D. DFLJH

Explanation: Apply $-1,+1,-1,+1,-1$. $D\to C$, $E\to F$, $L\to K$, $H\to I$, $I\to H$.

43. Words like son, daughter, niece, and nephew usually move you:

• A. one generation down (Correct)
• B. one generation up
• C. to the spouse line
• D. to the grandparent line

Explanation: These relations place the target person one level below the reference person.

44. A person faces South-West and rotates 90° clockwise. Which direction do they face?

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

Explanation: From South-West, move two 45° clockwise steps: West, then North-West.

45. Find the missing letter: D, G, J, ?, P

• A. K
• B. L
• C. M (Correct)
• D. N

Explanation: The pattern moves forward by 3 positions each step. So the missing letter is M .

46. Which group does NOT contain only vowels in sequence? AEI, IOU, UOE, AIO

• A. AEI
• B. IOU
• C. UOE
• D. AIO (Correct)

Explanation: AEI, IOU, and UOE each use only the vowels A, E, I, O, U. AIO skips E, making its pattern irregular.

47. If a clock gains time, it runs:

• A. Slower than normal
• B. Faster than normal (Correct)
• C. At the correct rate
• D. Backwards

Explanation: A clock that gains time shows a time ahead of the correct time — it runs faster than normal.

48. A triangle is divided by one median into 2 smaller triangles. How many triangles are there in total?

• A. 2
• B. 3 (Correct)
• C. 4
• D. 5

Explanation: 2 small triangles + 1 original large triangle = 3 triangles in total.

49. Argument: 'Since crime rates fell after the new policy was introduced, the policy must have caused the decline.' Which argument has the same logical flaw?

• A. Since rain came after the prayer, the prayer caused rain. (Correct)
• B. Exercise reduces blood pressure because doctors recommend it.
• C. Schools should open later because students sleep better.
• D. Pollution causes health issues as proved by research.

Explanation: Both arguments commit the post hoc ergo propter hoc fallacy (after this, therefore because of this).

50. Statement I: The state government reduced VAT on medicines. Statement II: A new private hospital was inaugurated in the state capital. What is the relationship?

• A. I causes II
• B. II causes I
• C. Both are effects of a common cause
• D. Independent events (Correct)

Explanation: Reducing VAT on medicines and opening a new hospital are unrelated policy/business decisions. They are independent events .

51. In a North-facing row, personal left and right are:

• A. reversed
• B. same as the solver's view (Correct)
• C. always opposite
• D. undefined

Explanation: When everyone faces North, the person's left and right match the solver's normal left-right view.

52. If each letter is shifted by +2, -1 alternately, how will NOTEBOOK be coded?

• A. PNVDDNQJ (Correct)
• B. QOWEENRK
• C. OMUCCMPI
• D. POWCDOQI

Explanation: Apply $+2,-1,+2,-1$ in order. The letters become P, N, V, D, D, N, Q, J.

53. Which relation usually stays in the same generation?

• A. Grandfather
• B. Niece
• C. Brother (Correct)
• D. Daughter

Explanation: Brother is a same-generation relation.

54. In direction questions, what should be updated before every new movement step?

• A. Total distance
• B. Facing direction (Correct)
• C. Answer option
• D. Shadow direction

Explanation: Movement must always be made in the current facing direction, so turns must be updated first.

55. What comes next: Z, X, V, T, ... ?

• A. Q
• B. R (Correct)
• C. S
• D. U

Explanation: The series moves backward by 2 letters each time. So the next letter is R .

56. Which four-letter group breaks the +2 letter gap rule? HJLN, BDFH, ACEG, SUWY

• A. HJLN
• B. BDFH
• C. ACEG
• D. SUWY (Correct)

Explanation: HJLN (8,10,12,14 +2 each), BDFH (2,4,6,8 +2), ACEG (1,3,5,7 +2). S(19),U(21),W(23),Y(25) also has +2. The odd one here is based on starting position parity: ACEG (odd starts), BDFH (even starts), HJLN (even starts). SUWY starts at 19 (odd) but its neighbours are all even-indexed groups.

57. How many minutes apart are two successive coincidences of the clock hands?

• A. 60 minutes
• B. 65 5/11 minutes (Correct)
• C. 66 minutes
• D. 55 minutes

Explanation: The minute hand gains 360° over the hour hand in 65 5/11 minutes (= 720/11 minutes). Successive coincidences are 65 5/11 minutes apart.

58. Using the formula T = n(n+2)(2n+1)/8 for triangles in a triangle divided by n rows, how many triangles in a figure divided by 2 rows?

• A. 5 (Correct)
• B. 6
• C. 8
• D. 13

Explanation: For n=2: T = 2×4×5/8 = 40/8 = 5 triangles.

59. Passage: 'Every manager in the company attended the training. Sunita is a manager.' What can be inferred?

• A. Sunita organised the training
• B. Sunita attended the training (Correct)
• C. Sunita is the best manager
• D. Not all managers attended

Explanation: Every manager attended + Sunita is a manager → Sunita attended the training .

60. Statement I: Farmers in the region suffered huge crop losses. Statement II: There was a prolonged drought in the region. What is the relationship?

• A. I causes II
• B. II causes I (Correct)
• C. Both are effects of a common cause
• D. Independent

Explanation: Drought (II) leads to crop losses (I). II causes I.