Logical Reasoning Mock Test 1 Practice

1. 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.

2. 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.

3. Which relation usually stays in the same generation?

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

Explanation: Brother is a same-generation relation.

4. 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.

5. 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 .

6. 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.

7. 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.

8. 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.

9. 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 .

10. 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.

11. In a South-facing row, a person's left becomes:

• A. your left
• B. your right (Correct)
• C. the middle seat
• D. an extreme seat

Explanation: South-facing arrangements reverse the solver's left-right mapping.

12. In a code, the word is reversed first and then each letter is moved one step forward. How will TRACK be coded?

• A. KCART
• B. LDBSU (Correct)
• C. JBZQS
• D. LDCSU

Explanation: Reverse TRACK to KCART. Now move each letter one step forward to get LDBSU.

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

• A. Niece
• B. Daughter-in-law (Correct)
• C. Sister-in-law
• D. Cousin

Explanation: Son's wife is your daughter-in-law .

14. A person walks 5 km North and then 3 km East. In which direction is the endpoint from the start?

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

Explanation: The person has moved both north and east, so the final direction is North-East.

15. Find the next term: B, E, H, K, ... ?

• A. L
• B. M
• C. N (Correct)
• D. O

Explanation: The letters move forward by 3 positions. So the next letter is N .

16. What is the best first step when solving letter-group odd-one-out questions?

• A. Guess from options
• B. Convert letters to position numbers (Correct)
• C. Compare only the first letter
• D. Count the vowels

Explanation: Position numbers reveal the gap pattern instantly, making it easy to spot the group that breaks the rule.

17. A clock shows 11:00 when the actual time is 10:00. How much has the clock gained?

• A. 30 minutes
• B. 45 minutes
• C. 60 minutes (Correct)
• D. 1 hour

Explanation: Clock shows 11:00 but real time is 10:00. The clock is ahead by 11:00 − 10:00 = 60 minutes (1 hour) .

18. In a 3×2 grid of unit squares, how many rectangles are there in total (including squares)?

• A. 12
• B. 18 (Correct)
• C. 24
• D. 36

Explanation: Rectangles in m×n grid = C(m+1,2)×C(n+1,2) = C(4,2)×C(3,2) = 6×3 = 18 .

19. Passage: 'Nations with high literacy rates tend to have lower birth rates. Country A has a literacy rate of 95%.' What can be inferred?

• A. Country A has the lowest birth rate
• B. Country A likely has a lower birth rate (Correct)
• C. Education has no link to birth rate
• D. Country A's population is declining

Explanation: 'Tend to' indicates a trend, not certainty. Inference: Country A likely has a lower birth rate .

20. Statement I: The city's air quality index fell to 'hazardous' levels. Statement II: The number of respiratory illness cases in hospitals tripled. What is the relationship?

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

Explanation: Hazardous air quality directly causes respiratory illnesses. I causes II.

21. If A sits immediately left of B and B sits immediately left of C in a North-facing row, the fixed block is:

• A. C-B-A
• B. A-B-C (Correct)
• C. B-A-C
• D. A-C-B

Explanation: Immediate-left clues form the chain directly as A-B-C in a North-facing row.

22. In a code, the word is reversed first and then each letter is moved one step forward. How will CITY be coded?

• A. YTIC
• B. XSHB
• C. ZUJD (Correct)
• D. AVKE

Explanation: Reverse CITY to YTIC. Then shift each letter one step forward: ZUJD.

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

• A. Brother-in-law
• B. Son-in-law (Correct)
• C. Nephew
• D. Uncle

Explanation: Daughter's husband is your son-in-law .

24. A person walks 6 km North, 5 km East, 2 km South, and 4 km West. In which direction is the endpoint from the start?

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

Explanation: Net East-West shift = 1 km East. Net North-South shift = 4 km North. So the endpoint is North-East.

25. Which letter comes next: Y, B, E, H, ... ?

• A. J
• B. K (Correct)
• C. L
• D. M

Explanation: The pattern moves +3 each time with alphabet wraparound. After H comes K .

26. In a letter group, if three groups have a consistent +3 gap and one has a +4 gap, the odd one is:

• A. The first group
• B. The group with +4 gap (Correct)
• C. Any group containing vowels
• D. The group with the longest word

Explanation: When three groups share a rule and one breaks it, the outlier is the odd one out.

27. How many odd days are there in the month of February in a non-leap year?

• A. 0 (Correct)
• B. 1
• C. 2
• D. 3

Explanation: February in a non-leap year = 28 days = 4 weeks exactly. Odd days = 0 .

28. In a 4×4 grid of unit squares, how many squares of all sizes are there?

• A. 16
• B. 30 (Correct)
• C. 40
• D. 54

Explanation: 1×1: 16, 2×2: 9, 3×3: 4, 4×4: 1. Total = 16+9+4+1 = 30 .

29. Argument: 'We should not invest in renewable energy because it is expensive.' Which argument uses the same structure (reject X because of cost)?

• A. We should invest in infrastructure as it creates jobs.
• B. We should not build a new hospital because the cost is too high. (Correct)
• C. Renewable energy is the future of the world.
• D. High-cost projects often have high returns.

Explanation: Both arguments reject an action purely on cost grounds — same logical structure.

30. Statement I: The stock market fell sharply yesterday. Statement II: The national currency depreciated against the dollar. What is the relationship?

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

Explanation: Both market decline and currency depreciation are often effects of the same underlying economic uncertainty. Common cause.