Previous Year Paper

PYST 12: IB Security Assistant (Executive) Official Paper - Logical Ability & Reasoning (Held On: 29 Sept, 2025 Shift 4) (Previous Year Paper)

Held in 2025

20 questions15 minutes

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Paper last updated: 15 October 2026

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Questions & answers

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Question 1

Piyush starts from Point A and drives 6 km towards the east. He then takes a right turn, drives 6 km, turns right and drives 7 km. He then takes a right turn and drives 9 km. He takes a final right turn, drives 1 km and stops at Point P. How far (shortest distance) and towards which direction should he drive in order to reach Point A again? (All turns are 90-degree turns only unless specified.)

AOption (a)
3 km to the north
BOption (b)
3 km to the south
COption (c)
4 km to the south
DOption (d)
4 km to the north

View answer & explanation

Correct answer

3 km to the south

Why this answer is correct

Piyush starts from Point A and drives 6 km towards the east.
He then takes a right turn, drives 6 km, turns right and drives 7 km.
He then takes a right turn and drives 9 km.
He takes a final right turn, drives 1 km and stops at Point P.

The Final Diagram,

Hence, the correct answer is "Option 2"

Question 2

GKMP is related to BFHK in a certain way based on the English alphabetical order. In the same way, PJSU is related to KENP. To which of the given options is VOJZ related, following the same logic?

AOption (a)
QJEU
BOption (b)
PIDT
COption (c)
BFEK
DOption (d)
JPZU

View answer & explanation

Correct answer

QJEU

Why this answer is correct

The pattern followed here is:

Hence, the correct answer is "Option 1"

Question 3

What should come in place of the question mark (?) in the given series?

41 48 59 72 89 108 ?

AOption (a)
129
BOption (b)
131
COption (c)
140
DOption (d)
134

View answer & explanation

Correct answer

131

Why this answer is correct

The logic follows here,

Hence, the correct answer is "Option 2"

Question 4

Read the given statements and conclusions carefully. Assuming that the information given in the statements is true, even if it appears to be at variance with commonly known facts, decide which of the given conclusions logically follow(s) from the statements.

Statements:

Some buckets are plums.

Some plums are chips.

Conclusions:

(I) Some buckets are chips.

(II) All chips are plums.

AOption (a)
Neither conclusion (I) nor (II) follows.
BOption (b)
Only conclusion (I) follows.
COption (c)
Only conclusion (II) follows.
DOption (d)
Both conclusions (I) and (II) follow.

View answer & explanation

Correct answer

Neither conclusion (I) nor (II) follows.

Why this answer is correct

The least possible Venn diagram is as follows:

Conclusions:

(I) Some buckets are chips. - False (As their is no direct relation between buckets and chips may be it is possible but nont definite.Hence, it is false)

(II) All chips are plums.- False (Some Plums are Chips . All chips are plums is may be possible but nont definite.Hence, it is false)

Neither conclusion (I) nor (II) follows.

Hence, the correct answer is "Option 1"

Question 5

In a certain code language,

A + B means 'A is the mother of B',

A - B means 'A is the brother of B',

A x B means 'A is the wife of B',

A % B means 'A is the father of B' and

A # B means 'A is the daughter of B'.

How is L related to P if 'L # K % R - T + P # N'?

AOption (a)
Wife's mother
BOption (b)
Son's daughter
COption (c)
Father's mother
DOption (d)
Mother's sister

View answer & explanation

Correct answer

Mother's sister

Why this answer is correct

Preparing the family tree diagram by using the following symbols:

Hence, the correct answer is "Option 4"

Question 6

Refer to the following letter and symbol series and answer the question that follows.

Counting to be done from left to right only.

(Left) L Z # Z K $ S $ B © © G @ F # D W % V O (Right)

How many such letters are there each of which is immediately preceded by a letter and also immediately followed by a symbol?

AOption (a)
4
BOption (b)
3
COption (c)
2
DOption (d)
5

View answer & explanation

Correct answer

Why this answer is correct

Given (Left) L Z # Z K $ S $ B © © G @ F # D W % V O (Right)

Required Conditions: Letter, Letter, Symbol

(Left) L Z # Z K $ S $ B © © G @ F # D W % V O (Right)

Hence, the correct answer is "Option 2"

Question 7

In a certain code language,

A = B means 'A is the sister of B',

A $ B means 'A is the brother of B',

A@B means 'A is the wife of B',

and A * B means 'A is the father of B'.

How is A related to K if 'A $ R = F @ B * K'?

AOption (a)
Mother's brother
BOption (b)
Mother's father
COption (c)
Brother
DOption (d)
Father

View answer & explanation

Correct answer

Mother's brother

Why this answer is correct

Preparing the family tree diagram by using the following symbols:

As per the given information:

Hence, the correct answer is "Option 1"

Question 8

In a certain code language, 'in the future' is written as 'lo km bh' and 'future is bright' is coded as 'tf rg km'. How is 'future' coded in that language?

AOption (a)
rg
BOption (b)
km
COption (c)
bh
DOption (d)
to

View answer & explanation

Correct answer

Why this answer is correct

The logic follows here,

'in the future' - 'lo km bh'

'future is bright' - 'tf rg km'

Code for Future is km.

Hence, the correct answer is "Option 2"

Question 9

Seven boxes, A, B, C, D, E, F and G, are kept one over the other but not necessarily in the same order. Only two boxes are kept below E. Only one box is kept above D. Only one box is kept between D and B. G is kept immediately above C. F is kept at some place below A. How many boxes are kept below A?

AOption (a)
3
BOption (b)
5
COption (c)
6
DOption (d)
4

View answer & explanation

Correct answer

Why this answer is correct

Seven boxes, A, B, C, D, E, F and G, are kept one over the other but not necessarily in the same order.

Only two boxes are kept below E.
Only one box is kept above D.
Only one box is kept between D and B.
G is kept immediately above C.
F is kept at some place below A

The Final Arrangement is,

A
D
F
B
E
G
C

Hence, the correct answer is "Option 3"

Question 10

If + means -, ÷ means ×, × means ÷ and - means +, then what will come in place of the question mark (?) in the following equation?

11 + 64 × 8 - 14 ÷ 2 = ?

AOption (a)
42
BOption (b)
31
COption (c)
28
DOption (d)
30

View answer & explanation

Correct answer

Why this answer is correct

Given Equation : 11 + 64 × 8 - 14 ÷ 2 = ?

means -, ÷ means ×, × means ÷ and - means +

11 - 64 ÷ 8 + 14 × 2 = ?

11 + 28 - 8 = ?

39 - 8 = ?

Hence, the correct answer is "Option 2"

Question 11

Which of the following letter-number clusters will replace the question mark (?) in the given series to make it logically complete?

AB 1, EG 8, IL 27, MQ 64, ?

AOption (a)
QW 216
BOption (b)
UV 343
COption (c)
QV 125
DOption (d)
UV 216

View answer & explanation

Correct answer

QV 125

Why this answer is correct

The pattern followed here is:

Hence, the correct answer is "Option 3"

Question 12

Refer to the following letter and symbol series and answer the question that follows.

Counting to be done from left to right only.

(Left) P X R \ N % Y C # V ^ = F ^ ^ E % N / C C (Right)

How many such symbols are there, each of which is immediately preceded by a symbol and also immediately followed by a letter?

AOption (a)
Three
BOption (b)
Two
COption (c)
One
DOption (d)
Four

View answer & explanation

Correct answer

Two

Why this answer is correct

Given : (Left) P X R \ N % Y C # V ^ = F ^ ^ E % N / C C (Right)

Required Conditins: Symbol, Symbol, Letter.

(Left) P X R \ N % Y C # V ^ = F ^ ^ E % N / C C (Right)

Hence, the correct answer is "Option 2"

Question 13

Six students, Amit, Dinesh, Neha, Mohan, Radha and Priya, are sitting around a circular table, facing the centre. Radha is sitting to the immediate left of Mohan. Amit is sitting second to the right of Dinesh. Both Dinesh and Mohan are immediate neighbours of Priya. Who among them sits second to the left of Neha?

AOption (a)
Radha
BOption (b)
Priya
COption (c)
Mohan
DOption (d)
Amit

View answer & explanation

Correct answer

Priya

Why this answer is correct

Six students, Amit, Dinesh, Neha, Mohan, Radha and Priya, are sitting around a circular table, facing the centre.
Radha is sitting to the immediate left of Mohan.
Amit is sitting second to the right of Dinesh.
Both Dinesh and Mohan are immediate neighbours of Priya

The Final Arrangement is

Hence, the correct answer is "Option 2"

Question 14

Based on the English alphabetical order, three of the following four letter-cluster pairs are alike in a certain way and thus form a group. Which letter-cluster pair DOES NOT belong to that group?

(Note: The odd one out is not based on the number of consonants/vowels or their position in the letter-cluster.)

AOption (a)
HK – EO
BOption (b)
LZ - GD
COption (c)
TU - QY
DOption (d)
NC - KG

View answer & explanation

Correct answer

LZ - GD

Why this answer is correct

The pattern followed here is:

Hence, the correct answer is "Option 2"

Question 15

Statements:

Some monkeys are banks.

Some banks are paintings.

Conclusions:

(I) Some monkeys are paintings.

(II) All paintings are banks.

AOption (a)
Only conclusion (II) follows.
BOption (b)
Both conclusions (I) and (II) follow.
COption (c)
Neither conclusion (I) nor (II) follows.
DOption (d)
Only conclusion (I) follows.

View answer & explanation

Correct answer

Neither conclusion (I) nor (II) follows.

Why this answer is correct

The least possible Venn diagram is as follows:

Conclusions:

(I) Some monkeys are paintings. - False (As their is no relation between monkey and paintings, may be it is possible but not defininte)

(II) All paintings are banks.- False (As their is no relation between banks and paintings, may be it is possible but not defininte)

Neither conclusion (I) nor (II) follows.

Hence, the correct answer is "Option 3"

Question 16

What should come in place of the question mark (?) in the given series?

112 203 112 179 112 155 112 ? 112

AOption (a)
112
BOption (b)
149
COption (c)
131
DOption (d)
125

View answer & explanation

Correct answer

131

Why this answer is correct

The logic follows here,

Hence, the correct answer is "Option 3"

Question 17

In a certain code language, 'SLIP' is coded as '1492' and 'PITS' is coded as '9215'. What is the code for 'T' in the given code language?

AOption (a)
2
BOption (b)
5
COption (c)
9
DOption (d)
1

View answer & explanation

Correct answer

Why this answer is correct

The logic follows here,

Hence, the correct answer is "Option 2"

Question 18

Among five toys in a store, toy V is taller than toy M, but not as tall as toy R. Toy J is taller than toy D, but shorter than toy M. Which toy is the tallest in the store?

AOption (a)
V
BOption (b)
J
COption (c)
R
DOption (d)
M

View answer & explanation

Correct answer

Why this answer is correct

The logic follows here,

V is taller than M, but shorter than R → R > V > M

R>V>M

J is taller than D, but shorter than M →

M > J > DM>J>D

Combining both:

R > V > M > J > D

Hence, the correct answer is "Option 3"

Question 19

A, B, C, D, J, K and L are sitting around a circular table facing the centre of the table. Only two people sit between B and D when counted from the left of D. J sits third to the left of L. C sits to the immediate right of L. C sits second to the left of B. K is not an immediate neighbor of J.

Who sits third to the right of A?

AOption (a)
K
BOption (b)
J
COption (c)
B
DOption (d)
C

View answer & explanation

Correct answer

Why this answer is correct

A, B, C, D, J, K and L are sitting around a circular table facing the centre of the table.

Only two people sit between B and D when counted from the left of D.
J sits third to the left of L.
C sits to the immediate right of L.
C sits second to the left of B.
K is not an immediate neighbor of J.

The Final Arrangement is,

Hence, the correct answer is "Option 4"

Question 20

If 'A' stands for '÷', 'B' stands for '×', 'C' stands for '+' and 'D' stands for '-', then what will come in place of the question mark (?) in the following equation?

16 B 6 D 45 A 15 C 20 = ?

AOption (a)
113
BOption (b)
110
COption (c)
115
DOption (d)
118

View answer & explanation

Correct answer

113

Why this answer is correct

Decoding signs:

Sign	A	B	C	D
Stands For	÷	×	+	-

Given : 16 B 6 D 45 A 15 C 20 = ?

16 × 6 - 45 ÷ 15 + 20 = ?

16 × 6 - 3 + 20 = ?

96 - 3 + 20 = ?

116 - 3 = ?

113 = ?

∴ The correct answer is "Option 1'.

20 questions in the full paper

Sign

Stands For