Logical Reasoning & Mental Ability • Topic Practice Hub

Reasoning Core Topics (ADRE Questions & PYQ Solutions)

Practice official ADRE solved questions and previous year paper sets for Reasoning Core Topics. Includes step-by-step solutions and explanations. Explore 30 questions collected from official SLRC ADRE Grade 3 & Grade 4 papers.

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Official PYQs

Subject

Logical Reasoning & Mental Ability

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Bilingual MCQs

Solved MCQs & Official Answer Explanations

ADRE 2024 • 2024 Paper 4Question 1

As per the diagram, which zone represents married nurse who should be sent for training ?

A.2

B.4 ✓ (Correct)

C.3

D.7

Explanation: The required zone is the intersection of Married, Nurse, and Sent for Training regions in the Venn diagram, represented by number 4.

ADRE 2024 • 2024 Paper 4Question 2

Grandmother was cooking at a picnic, attended by her son and daughter-in-law, with their four sons and their wives and one son and two daughters to each of the sons. How many ladies were there at the picnic ?

A.8

B.12

C.14 ✓ (Correct)

D.10

Explanation: Ladies: Grandmother (1) + Daughter-in-law (1) + 4 Wives of sons (4) + (4 sons * 2 daughters each = 8 daughters) = 1 + 1 + 4 + 8 = 14 ladies.

ADRE 2024 • 2024 Paper 4Question 3

Consider the five numbers given here: (i) 736 (ii) 269 (iii) 958 (iv) 219 (v) 793. Arrange the digits of each number in descending order. What would be the difference between the highest number and the lowest one ?

A.222 ✓ (Correct)

B.716

C.618

D.12

Explanation: Arranging digits in descending order: (i) 763 (ii) 962 (iii) 985 (iv) 921 (v) 973. Highest = 985, Lowest = 763. Difference = 985 - 763 = 222.

ADRE 2024 • 2024 Paper 4Question 4

A six-faced die is made in such a way that the sum of the dots on the opposite faces are always equal. Which of the following pairs is not opposite facing pair of the die ?

A.1, 4 ✓ (Correct)

B.2, 5

C.1, 6

D.3, 4

Explanation: Standard/equal sum die has opposite pairs summing to 7: (1,6), (2,5), (3,4). Pair (1,4) sums to 5 and cannot be opposite faces.

ADRE 2024 • 2024 Paper 4Question 5

Which is the odd one out of the list ?

A.Chapters

B.Preface

C.Index

D.Book ✓ (Correct)

Explanation: Chapters, Preface, and Index are all structural parts of a Book. Therefore, 'Book' is the overall container and the odd one out.

ADRE 2024 • 2024 Paper 4Question 6

Which of the following diagrams best represents Writers, Teachers and Musicians of our society ?

A.(A)

B.(B)

C.(C)

D.(D) ✓ (Correct)

Explanation: A person can be a Writer, Teacher, and Musician simultaneously. Thus, three intersecting circles (Venn diagram) best depict these overlapping professional groups.

ADRE 2024 • 2024 Paper 5Question 7

Which of the following should not be in the same group ?

A.Paper

B.Eraser

C.Pen

D.Textbook ✓ (Correct)

Explanation: Paper, Eraser, and Pen are basic writing/stationery tools, while Textbook is reading material.

ADRE 2024 • 2024 Paper 5Question 8

Which of the following set is incorrectly matched ?

A.M : 13

B.S : 20 ✓ (Correct)

C.W : 23

D.K : 11

Explanation: The English alphabetical position of S is 19, not 20 (T is 20).

ADRE 2024 • 2024 Paper 5Question 9

Air : Eagle : : Water : ?

A.Duck ✓ (Correct)

B.Cuckoo

C.Pigeon

D.Ostrich

Explanation: An Eagle flies in the Air; a Duck swims/moves in Water.

ADRE 2024 • 2024 Paper 5Question 10

Identify the word which cannot be made by using the letters present in LEMONADE.

A.LEAD

B.MADE

C.DEAF ✓ (Correct)

D.DEAL

Explanation: LEMONADE does not contain the letter 'F', so 'DEAF' cannot be formed.

ADRE 2024 • 2024 Paper 5Question 11

What would come as the next character after B, E, J, Q ?

A.T

B.U

C.W

D.Z ✓ (Correct)

Explanation: Alphabet gaps: B (+3) -> E (+5) -> J (+7) -> Q (+9) -> Z. So the next character is Z.

ADRE 2024 • 2024 Paper 5Question 12

Rakesh is taller than Subodh. Their friend Atanu is the only one to be in the basketball team that requires player’s height to be above six feet. According to height, who is in the middle ?

A.Subodh

B.Atanu

C.Rakesh ✓ (Correct)

D.Cannot be determined

Explanation: Atanu is taller than 6 feet and is the tallest. Rakesh is taller than Subodh. So order of height is Atanu > Rakesh > Subodh. Rakesh is in the middle.

ADRE 2024 • 2024 Paper 5Question 13

Babli was born a year after her parent’s marriage. At present Babli is six years old, and her father is twenty five years older than her. If the father is two years older than his wife, at what age did Babli’s mother get married ?

A.22 years ✓ (Correct)

B.23 years

C.21 years

D.cannot be determined

Explanation: Babli's age = 6. Father's age = 6 + 25 = 31. Mother's current age = 31 - 2 = 29. Babli was born 6 years ago when mother was 23. Babli was born 1 year after marriage, so mother married at age 23 - 1 = 22 years.

ADRE 2024 • 2024 Paper 5Question 14

What would be placed to continue the sequence 4, 6, 8, 12, 14, 18, , , 30 ?

A.20, 22

B.20, 24 ✓ (Correct)

C.20, 26

D.20, 28

Explanation: The sequence consists of composite/prime-related numbers or additions: 4 (+2) -> 6 (+2) -> 8 (+4) -> 12 (+2) -> 14 (+4) -> 18 (+2) -> 20 (+4) -> 24 (+6) -> 30.

ADRE 2024 • 2024 Paper 5Question 15

Identify the item which is not of same type.

A.Payment ✓ (Correct)

B.Rent

C.Price

D.Bill

Explanation: Payment is an action of settling a debt, whereas Rent, Price, and Bill are monetary values/charges.

ADRE 2022 • 2022 Paper 2Question 16

Which pair of numbers should replace $ in (2, 3), (4, 5), (6, 7), $, (10, 13) ?

A.(8, 11) ✓ (Correct)

B.(8, 9)

C.(7, 8)

D.(7, 11)

Explanation: The first items in each pair form consecutive even numbers (2, 4, 6, 8, 10), and the second items in each pair form consecutive prime numbers starting from 3 (3, 5, 7, 11, 13). The missing pair is (8, 11).[cite: 1]

ADRE 2022 • 2022 Paper 4Question 17

Find the odd one out.

A.Gangtok

B.Imphal

C.Agartala

D.Dimapur ✓ (Correct)

Explanation: Gangtok, Imphal, and Agartala are capital cities of Sikkim, Manipur, and Tripura respectively. Dimapur is the largest city in Nagaland, but the capital is Kohima.

ADRE 2022 • 2022 Paper 4Question 18

Q is the only sister of A, who is the only son of B. B's wife is the daughter of P, who has only one son R. How is R related to Q ?

A.Father-in-law

B.Uncle ✓ (Correct)

C.Son

D.Father

Explanation: A is B's son, making Q (A's sister) B's daughter. B's wife is Q's mother. P's daughter is Q's mother, and P's son R is the brother of Q's mother. Therefore, R is the maternal uncle of Q.

ADRE 2022 • 2022 Paper 4Question 19

In a row of boys, Srinath is 7th from left and Prabin is 12th from right. If they interchange their positions, Srinath becomes 22nd from the left. How many boys are there in the row ?

A.19

B.31

C.33 ✓ (Correct)

D.34

Explanation: After interchanging, Srinath is 22nd from the left. He is now sitting in Prabin's original position, which is 12th from the right. Total boys = (Left Position + Right Position) - 1 = (22 + 12) - 1 = 33.

ADRE 2022 • 2022 Paper 4Question 20

If 72 96 = 6927, 58 87 = 7885, then 79 86 = ?

A.7689

B.8976

C.6897 ✓ (Correct)

D.6978

Explanation: The logic is to reverse the entire string of numbers. Reversing 7296 gives 6927. Reversing 5887 gives 7885. Reversing 7986 gives 6897.

ADRE 2022 • 2022 Paper 4Question 21

The Chairman enters the Assembly Hall 10 min before 12:30 hours to conduct the interview. The Chairman was 20 min earlier than the MD. The MD was 30 min late as per time fixed for the interview. The time fixed for the interview was :

A.12:50 hours

B.12:40 hours

C.12:00 hours

D.12:10 hours ✓ (Correct)

Explanation: The Chairman enters at 12:20. Since he is 20 minutes earlier than MD, MD arrives at 12:40. The MD is 30 minutes late for the interview, so the fixed time is 12:40 - 30 mins = 12:10.

ADRE 2022 • 2022 Paper 5Question 22

While writing the even numbers from 1 to 100, how many time '2' will be written ?

A.12 ✓ (Correct)

B.15

C.10

D.13

Explanation: The even numbers with 2 are: 2, 12, 20, 22 (has two 2s), 24, 26, 28, 32, 42, 52, 62, 72, 82, 92. Counting the 2s: 1+1+1+2+1+1+1+1+1+1+1+1+1+1 = 15[cite: 1].

ADRE 2022 • 2022 Paper 5Question 23

Identify the incorrectly matched pair :

A.Newton : Science ✓ (Correct)

B.Aryabhatta : Mathematics

C.Chanakya : Poetry

D.Mozart : Music

Explanation: Chanakya is known for his treatises on statecraft, politics, and economics (Arthashastra), not poetry[cite: 1].

ADRE 2022 • 2022 Paper 5Question 24

What would replace A and B in order to establish a logical connection in 3:A:90∷3:B:1095 ?

A.Month, Year ✓ (Correct)

B.Month, Hour

C.Year, Days

D.Days, Hours

Explanation: 3 Months = 90 days. 3 Years = 1095 days (3 x 365). Therefore, A corresponds to 'Month' and B corresponds to 'Year'[cite: 1].

ADRE 2022 • 2022 Paper 5Question 25

Which of the following numbers is unlike the others ?

A.729 ✓ (Correct)

B.512

C.232

D.125

Explanation: 729 is 9³, 512 is 8³, and 125 is 5³. All except 232 are perfect cubes[cite: 1].

ADRE 2022 • 2022 Paper 5Question 26

Pointing to the newsreader on TV screen, Uday says, 'His only brother is the father of my son’s father.' The newsreader is Uday’s ______ .

A.Grandfather ✓ (Correct)

B.Nephew

C.Father

D.Uncle

Explanation: 'My son's father' is Uday himself. The father of Uday is Uday's father. The newsreader's only brother is Uday's father. Thus, the newsreader is Uday's uncle[cite: 1].

ADRE 2022 • 2022 Paper 5Question 27

If the digits of the number 3249685 are arranged in ascending order, the position of how many digits would remain the same ?

A.Two ✓ (Correct)

B.Four

C.Three

D.One

Explanation: Original: 3, 2, 4, 9, 6, 8, 5. Ascending: 2, 3, 4, 5, 6, 8, 9. The digits 4, 6, and 8 remain in their original positions (3 digits in total)[cite: 1].

ADRE 2022 • 2022 Paper 5Question 28

If the English alphabets are written horizontally in the reverse order, then what is the 6th letter from left ?

A.V ✓ (Correct)

B.U

C.T

D.F

Explanation: Reverse order: Z, Y, X, W, V, U, ... The 6th letter from the left is U[cite: 1].

ADRE 2022 • 2022 Paper 5Question 29

Amongst the colleagues, Rajput is taller than Hitesh, who is shorter than Suresh. Natasha is taller than Himashri, but shorter than Hitesh. Suresh is shorter than Rajput. Who is the tallest ?

A.Hitesh ✓ (Correct)

B.Rajput

C.Natasha

D.Suresh

Explanation: Rajput > Hitesh. Suresh > Hitesh. Hitesh > Natasha > Himashri. Rajput > Suresh. Overall order: Rajput > Suresh > Hitesh > Natasha > Himashri. Rajput is the tallest[cite: 1].

ADRE 2022 • 2022 Paper 5Question 30

Which of the following diagrams can represent ? 'Language', 'French', 'German'.

A.Option A Diagram ✓ (Correct)

B.Option B Diagram

C.Option C Diagram

D.Option D Diagram

Explanation: 'French' and 'German' are two entirely distinct languages. Therefore, they should be represented by two disjoint circles placed inside a larger circle representing 'Language'[cite: 1].

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