JKSSB Mental Ability MCQs

1. In the following equation, by using which mathematical operator will the expression become correct?

A

(18?6)?9?27

B

x, / and =

C

/, x and =

D

x, + and =

Aptitude Junior Stenographer 2024 REPORT ERROR
Correct Answer: B
Explanation:

/, x and = ✅

Correct Answered:

Wrong Answered:

2. A mango cost Rs. 7 each. An apple cost Rs. 5 each. If Rs. 38 are spent on these fruits, the number of mangoes purchased is

A

3

B

2

C

4

D

5

Aptitude Junior Stenographer 2024 REPORT ERROR
Correct Answer: C
Explanation:

4

Correct Answered:

Wrong Answered:

3. Knob: Door

A

Water: Tip

B

Ear: Face

C

Power: Battery

D

Error : Omission

Aptitude Junior Stenographer 2024 REPORT ERROR
Correct Answer: B
Explanation:

A) Water : Tip — water is not a part of a tip.
B) Ear : Face — an ear is part of the face (actually, part of the head, but close).
C) Power : Battery — power is energy provided by the battery, but not a part of it.
D) Error : Omission — error is a kind of omission, but not a part-whole relation.

Correct Answered:

Wrong Answered:

4. What is 7 + 7÷7+7×7-7=

A

zero

B

50

C

42

D

57

Aptitude Junior Stenographer 2024 REPORT ERROR
Correct Answer: B
Explanation:

50

Correct Answered:

Wrong Answered:

5. A car completes a certain journey in 8 hours. It covers half the distance at 40 km/hr. and the rest at 60 km/hr. The total distance of the journey is:

A

350 km

B

384 km

C

400 km

D

420 km

Aptitude Junior Stenographer 2024 REPORT ERROR
Correct Answer: B
Explanation:

384 KM

Correct Answered:

Wrong Answered:

6. Find the missing number in the following series:
10, 100, 200, 310, ?

A

430

B

420

C

410

D

440

Aptitude Junior Stenographer 2024 REPORT ERROR
Correct Answer: A
Explanation:

Step 1: Find the differences between terms

  • 100 - 10 = 90

  • 200 - 100 = 100

  • 310 - 200 = 110

The differences are increasing by 10 each time (90, 100, 110, ...).

Step 2: Find the next difference

Next difference = 110 + 10 = 120

Step 3: Add this to the last number

310 + 120 = 430

Correct Answered:

Wrong Answered:

7.

Statement: It is desirable to put the child in school at the age of 5 or so. Assumptions:

I. At that age the child reaches appropriate level of development and is ready to learn.

II. The schools do not admit children after six years of age.

A

Only assumption I is implicit

B

Only assumption II is implicit

C

Neither I nor II is implicit

D

Both I and II are implicit

Reasoning - Assumptions Veterinary Pharmacist 2025 REPORT ERROR
Correct Answer: A
Explanation:

The statement implies that the child is ready to learn at 5 years, assumption I is implicit. II is not necessarily implied.

Correct Answered:

Wrong Answered:

8. Match the word with its coded form.

A

i-1, ii-2, iii-3, iv-4

B

i-2, ii-3, iii-4, iv-1

C

i-1, ii-4, iii-2, iv-3

D

i-4, ii-3, iii-1, iv-2

Reasoning - Coding Veterinary Pharmacist 2025 VERIFIED
Correct Answer: B
Explanation:

i-2, ii-3, iii-4, iv-1

Correct Answered:

Wrong Answered:

9. Assertion (A): If a person moves 10 km north, then 5 km east, the total distance travelled is 15 km.

Reason (R): The shortest distance between the starting and ending point is given by the Pythagorean theorem.

A

Both A and R are true, and R correctly explains A.

B

Both A and R are true, but R does not explain A.

C

A is true, but R is false.

D

A is false, but R is true.

Reasoning - Assertion & Reason Veterinary Pharmacist 2025 REPORT ERROR
Correct Answer: B
Explanation:

Total distance is indeed 15 km (true), but Pythagoras gives displacement, not distance, so R does not explain A.

Correct Answered:

Wrong Answered:

10. The letters in the first set have a certain relationship. AST : BRU :: NQV : ?

A

ORW

B

MPU

C

MRW

D

OPW

Reasoning - Analogy Veterinary Pharmacist 2025 REPORT ERROR
Correct Answer: A
Explanation:

The pattern follows alphabetical shift. NQV corresponds to ORW.

Correct Answered:

Wrong Answered:

11. P is the father of Q. Q is the sister of R. R is the father of S. How is P related to S?

A

Grandfather

B

Father-in-law

C

Brother

D

Uncle

Reasoning - Blood Relation Veterinary Pharmacist 2025 REPORT ERROR
Correct Answer: A
Explanation:

P ? father of Q and R. R is father of S. Hence P is grandfather of S.

Correct Answered:

Wrong Answered:

12. Assertion (A): The coin when flipped next time will come up tails.

Reason (R): Because the coin was flipped five times in a row, and each time it came up heads.

A

Both (A) and (R) are true, and (R) is the correct explanation of (A).

B

Both (A) and (R) are false, and (R) is the correct explanation of (A).

C

(A) is doubtful, (R) is true, and (R) is not the correct explanation of (A).

D

(A) is doubtful, (R) is false, and (R) is the correct explanation of (A).

Reasoning - Assertion & Reason Veterinary Pharmacist 2025 REPORT ERROR
Correct Answer: C
Explanation:

Past coin flips do not influence future outcomes, hence A is doubtful, R is true but not valid explanation.

Correct Answered:

Wrong Answered:

13. Assertion (A): No man is perfect.

Reasoning (R): Some men are not perfect.

A

Both (A) and (R) are true but (R) does not provide sufficient reason for (A).

B

Both (A) and (R) are true and (R) provides sufficient reason for (A).

C

(A) is true but (R) is false

D

(A) is false but (R) is true

Reasoning - Assertion & Reason Veterinary Pharmacist 2025 REPORT ERROR
Correct Answer: A
Explanation:

Both statements are true but `some men are not perfect` does not fully justify `no man is perfect`.

Correct Answered:

Wrong Answered:

14. Complete the series: 22, 33, 46, 61, 78, ?

A

86

B

97

C

90

D

79

Reasoning - Series Veterinary Pharmacist 2025 REPORT ERROR
Correct Answer: B
Explanation:

Differences are +11, +13, +15, +17 ? Next difference = +19, hence 78+19=97.

Correct Answered:

Wrong Answered:

15. Select the pair that has the same relationship DIVA: OPERA

A

Conductor: Bus

B

Producer: Theatre

C

Thespian: Play

D

Director: Drama

Reasoning - Analogy Veterinary Pharmacist 2025 REPORT ERROR
Correct Answer: C
Explanation:

A diva performs in an opera, similarly a thespian performs in a play.

Correct Answered:

Wrong Answered:

16. In a certain code-language, CUL, WAP, DIR means red little box; SUT, MAD, BIX means well arranged pile; BIX, FAC, DIR means pile of boxes. The code for `OF` here is:

A

FAC

B

SUT

C

DIR

D

BIX

Coding-Decoding (words) Veterinary Pharmacist 2024 REPORT ERROR
Correct Answer: A
Explanation:

From `BIX, FAC, DIR` = `pile of boxes`, DIR=boxes, BIX=pile, FAC=of.

Correct Answered:

Wrong Answered:

17. GENERAL is coded as 7555913. How can KNOWLEDGE be coded?

A

256535475

B

236456473

C

234567897

D

658905468

Coding (alphabets) Veterinary Pharmacist 2024 REPORT ERROR
Correct Answer: A
Explanation:

Mapping = sum of digits of letter position: K(11)->2, N(14)->5, O(15)->6, W(23)->5, L(12)->3, E(5)->5, D(4)->4, G(7)->7, E(5)->5 => 256535475.

Correct Answered:

Wrong Answered:

18. In a certain language if A is written as 1, B as 2, C as 3 and so on. What do the figures 12, 9, 7, 8, 20 stand for?

A

LIANG

B

MIEGE

C

LIGNE

D

LIGHT

Coding (alphabets) Veterinary Pharmacist 2024 REPORT ERROR
Correct Answer: D
Explanation:

12=L, 9=I, 7=G, 8=H, 20=T => LIGHT.

Correct Answered:

Wrong Answered:

19. In a code language 356469 is written as 447378. Find the code for 648273.

A

758374

B

638182

C

739182

D

737172

Coding-Decoding (digits) Veterinary Pharmacist 2024 REPORT ERROR
Correct Answer: C
Explanation:

Pattern: odd-position digits +1, even-position digits -1. So 6->7,4->3,8->9,2->1,7->8,3->2 => 739182.

Correct Answered:

Wrong Answered:

20. Find the next number in the given series: 1, 4, 12, 30, 68, ......

A

140

B

154

C

146

D

150

Number Series Veterinary Pharmacist 2024 REPORT ERROR
Correct Answer: C
Explanation:

Pattern: next = current*2 + 2n (n = 1,2,3...). 1*2+2=4; 4*2+4=12; 12*2+6=30; 30*2+8=68; Next: 68*2+10 = 146.

Correct Answered:

Wrong Answered:

21. Find the next number in the given series: 6, 4, 5, 11, 39, ...

A

189

B

196

C

195

D

190

Number Series Veterinary Pharmacist 2024 REPORT ERROR
Correct Answer: A
Explanation:

Pattern: t_{n+1} = t_n * n - (n+1) for n starting at 1: 6*1-2=4; 4*2-3=5; 5*3-4=11; 11*4-5=39; Next: 39*5-6 = 195-6 = 189.

Correct Answered:

Wrong Answered:

22. What number should come next in the given series? 7, 14, 10, 20, 16, 32, ......

A

60

B

26

C

64

D

28

Number Series Veterinary Pharmacist 2024 REPORT ERROR
Correct Answer: D
Explanation:

Pattern: ×2, -4, ×2, -4, ×2, -4 ... So after 32 -> 32-4 = 28.

Correct Answered:

Wrong Answered:

23. Prabudh walks 8 km eastwards, then turns right and goes 4 km, then he turns left and goes 5 km. Which direction is he facing now?

A

East

B

North

C

South

D

West

Direction Sense Veterinary Pharmacist 2024 REPORT ERROR
Correct Answer: A
Explanation:

Start facing East -> right = South -> left = East. So facing East.

Correct Answered:

Wrong Answered:

24. Find the odd one out: A) FHJ : USQ B) VTQ : EGJ C) XVT : CEG D) RPN : IKM

A

FHJ : USQ

B

VTQ : EGJ

C

XVT : CEG

D

RPN : IKM

Letter series / Odd one Veterinary Pharmacist 2024 REPORT ERROR
Correct Answer: B
Explanation:

All pairs except B follow the pattern left letters decreasing by 2 each and right letters increasing by 2 each. Option B has a -2,-3 / +2,+3 pattern, so it`s the odd one.

Correct Answered:

Wrong Answered:

25. Rekha is the wife of Neeraj. Pranav is the son of Rekha. Arvind is the brother of Neeraj and father of Soham. How is Rekha related to Soham?

A

Sister

B

Cousin

C

Aunt

D

Mother

Family Relations Veterinary Pharmacist 2024 REPORT ERROR
Correct Answer: C
Explanation:

Neeraj and Arvind are brothers; Arvind is Soham`s father, so Rekha (Neeraj`s wife) is Soham`s aunt.

Correct Answered:

Wrong Answered:

26. Introducing Mira to guests, Mohan said, `Her father is the only son of my father`. How is Mira related to Mohan?

A

Sister

B

Daughter

C

Mother

D

Niece

Family Relations Veterinary Pharmacist 2024 REPORT ERROR
Correct Answer: B
Explanation:

`The only son of my father` refers to Mohan himself, so Mira`s father is Mohan; Mira is his daughter.

Correct Answered:

Wrong Answered:

27. SORROW : CRY :: MIRTH : ?

A

JOY

B

LAUGHTER

C

FROWN

D

WEEP

Analogies / Synonyms Veterinary Pharmacist 2024 REPORT ERROR
Correct Answer: B
Explanation:

Sorrow is associated with cry; mirth is associated with laughter.

Correct Answered:

Wrong Answered:

28. Ecstasy : Gloom :: ? (choose the analogous/opposite pair)

A

Congratulations : Occasion

B

Diligent : Successful

C

Measure : Scale

D

Humiliation : Exaltation

Analogies / Antonyms Veterinary Pharmacist 2024 REPORT ERROR
Correct Answer: D
Explanation:

Ecstasy and gloom are opposites; humiliation and exaltation are opposites.

Correct Answered:

Wrong Answered:

29. In the New Year`s party 500 people were invited. 200 people opted for Indian food, 150 ate Italian food and 100 people took continental food. 14 people have taken both Indian and Italian food, 10 people have taken both Italian and continental food and 15 people have eaten both Indian and continental food. 6 people have taken all three kinds of food. Find how many people have only Italian food?

A

150

B

120

C

110

D

101

Sets / Venn Diagram Veterinary Pharmacist 2024 REPORT ERROR
Correct Answer:
Explanation:

Only Italian = Italian - (Indian∩Italian) - (Italian∩Continental) + (All three) = 150 -14 -10 +6 = 132. (Note: 132 is not among the given options.)

Correct Answered:

Wrong Answered:

30. In a class of 50 students, 10 students play badminton and 20 students play volleyball and 4 students play both the games. Find the number of students who don`t play either badminton or volleyball.

A

24

B

22

C

30

D

20

Sets / Venn Diagram Veterinary Pharmacist 2024 REPORT ERROR
Correct Answer: A
Explanation:

Total playing = 10+20-4 = 26, so not playing = 50-26 = 24.

Correct Answered:

Wrong Answered:

31. PQRS is a quadrilateral and PQ || RS. T is the mid‑point of PQ. ST || QR. If the area of the triangle ΔPTS is 50 cm² then the area of quadrilateral PQRS is:

A

150 cm²

B

200 cm²

C

180 cm²

D

220 cm²

Geometry / Areas Veterinary Pharmacist 2024 REPORT ERROR
Correct Answer: A
Explanation:

Using a coordinate model (scale factor), area of ΔPTS in model = 1/2; quadrilateral area in model = 3/2. So quadrilateral area = (3/2)/(1/2) * 50 = 3 * 50 = 150 cm².

Correct Answered:

Wrong Answered:

32. A wall having dimensions 6 m long, 5 m high and 0.5 m thick is constructed by using bricks having measurements 25 cm x 12.5 cm x 7.5 cm. If 10% of the wall is filled with mortar, the number of bricks required to construct the wall is:

A

6250

B

6160

C

5760

D

5920

Mensuration / Volume Veterinary Pharmacist 2024 REPORT ERROR
Correct Answer: C
Explanation:

Wall volume = 6*5*0.5 = 15 m^3 = 15,000,000 cm^3. Effective brick volume = 90% of wall = 13,500,000 cm^3. Brick vol = 25*12.5*7.5 = 2343.75 cm^3. Number = 13,500,000/2343.75 = 5760.

Correct Answered:

Wrong Answered:

33. Two pipes P and Q can fill an empty tank in 20 minutes and 10 minutes respectively. R can empty a full tank in x minutes. If all three pipes are opened simultaneously, tank is full in 12 minutes. The value of x is:

A

18 minutes

B

20 minutes

C

30 minutes

D

15 minutes

Pipes and Cisterns Veterinary Pharmacist 2024 REPORT ERROR
Correct Answer: D
Explanation:

1/20 + 1/10 - 1/x = 1/12 => 3/20 - 1/x = 1/12 => 1/x = 3/20 - 1/12 = 1/15 => x = 15 minutes.

Correct Answered:

Wrong Answered:

34. Physics, Chemistry and Mathematics books have to be stacked in such a way that all the books are stored subject wise and the number of books in each stack is the same. The number of physics books is 1008, chemistry books 720 and mathematics books 288. Determine the total number of stacks required for physics, chemistry and mathematics books.

A

14

B

15

C

16

D

12

HCF / Stacking Veterinary Pharmacist 2024 REPORT ERROR
Correct Answer: A
Explanation:

Max books per stack = GCD(1008,720,288)=144. Number of stacks = 1008/144 + 720/144 + 288/144 = 7+5+2 = 14.

Correct Answered:

Wrong Answered:

35. Four bells ring simultaneously at 9 am. They ring at regular intervals of 10 minutes, 20 minutes, 30 minutes, 40 minutes respectively. The next time when all the four bells ring together is:

A

11 am

B

10:30 am

C

1:00 pm

D

11:30 am

LCM / Time Veterinary Pharmacist 2024 REPORT ERROR
Correct Answer: A
Explanation:

LCM of 10,20,30,40 = 120 minutes = 2 hours. Next together at 9am + 2 hours = 11 am.

Correct Answered:

Wrong Answered:

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