Question for OPSC Assistant Section Officer 2026 - Quiz / Questions / MCQ

Objective Questions

Latest OPSC ASO Exam Question (Objective Questions), MCQ in English

Subjects : Reasoning & Mental Ability, Mathematics

Question Bank OPSC Assistant Section Officer Exam Paper 2 - English

Reasoning & Mental Ability

Question 1Single Answer

How many such pairs of letters are there in the word ‘CLEANLINESS’ each of the which has as many letters between them in the word as they have in the English alphabet, in the same sequence?

A
Two
B
Three
C
Five
D
Four
E
None of these

Question 2Single Answer

Team A has scored more goals than Team B
Team C has scored fewer goals than Team B
Team A has scored fewer goals than Team C .
If the first two statements are true, the third statement is

A
True
B
False
C
Uncertain
D
None

Question 3Single Answer

If it is possible to make only one meaningful word with the second, the third, the sixth and the eight letters of the word FRAGMENT using each only once, which of the following will be the third letter of that word ? If no such word can be formed, give ‘X’ as the answer and if more than one such word can be formed, give ‘Y’ as the answer.

Question 4Single Answer

How many such letters are there in the word ORIENTAL each of which is as far away from the beginning of the word as when they are arranged alphabetically?

A
None
B
One
C
Two
D
Three
E
More than three

Question 5Single Answer

How many such pairs of letters in the word CREDIT each of which has as many letters between them in the word as in the English alphabet?

A
None
B
One
C
Two
D
Three
E
More than three

Question 6Single Answer

How many meaningful words can be made from the letters ‘LMEA’ using each letter only once in each word?

A
None
B
One
C
Two
D
Three
E
More than three

Question 7Single Answer

If it is possible to make only one meaningful word with the first, the second, the seventh and the eighth letters of the word TEMPORAL, which of the following will be the first letter of that word? If more than one such word can be made, give ‘Y’ as the answer and if no such word can be made, give ‘X’ as the answer.

Question 8Single Answer

If the letters of the word HANDOVER are arranged alphabetically from left to right how many letters will remain at the same position?

A
None
B
One
C
Two
D
Three
E
More than three

Question 9Single Answer

How many such pairs of letters are there in the word EXCURSION, each of which has as many letters between them in the word as they have in the English alphabet?

A
None
B
One
C
Two
D
Three
E
More than three

Question 10Single Answer

If it is possible to make only one meaningful word with the first, the second, the third, the sixth and the eighth letters of the word DEVIATION first letter of that word is your answer? If more than one such word can be made formed your answer is ‘A’ and if no such word can be formed your answer is ‘B’.

Question 11Single Answer

If each alternate letter beginning with the first in the word WORKING is replaced by the next letter in the English alphabet and each of the remaining letters is replaced by the previous letter in the English alphabet, which of the following will be the fourth from the right and after the replacement ?

A
N
B
Q
C
J
D
M
E
None of these

Question 12Single Answer

How many pairs of letters are there in the word ‘SHIFTED’ each of which has as many letters between its two letters as there are between in the English alphabet?

A
None
B
One
C
Two
D
Three
E
None of these

Question 13Single Answer

Passage :

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z .

Which letter in this alphabet is the eighth letter to the right of the letter and which is tenth letter to the left of the last but one letter of the alphabet ?

Question 14Single Answer

Passage :

Direction : The following question is based on the five words given below:
AND FOR THE BIG SUM (The new words formed after performing the mentioned operations may or may not necessarily the meaningful English words.)

If the third alphabet of each of the words is changed to the next alphabet in the English alphabetical series, which of the following will form a meaningful English word?

A
SUM
B
BIG
C
Both BIG and THE
D
FOR
E
Both FOR and BIG

Question 15Single Answer

Passage :

Direction : The following question is based on the five words given below:
AND FOR THE BIG SUM (The new words formed after performing the mentioned operations may or may not necessarily the meaningful English words.)

If the given words are arranged in the order as they would appear in a dictionary from left to right, which of the following will be second from the right ?

A
AND
B
FOR
C
THE
D
BIG
E
SUM

Question 16Single Answer

Passage :

Direction: The following question is based on the five words given below:
AND FOR THE BIG SUM (The new words formed after performing the mentioned operations may or may not necessarily the meaningful English words.)

If second alphabet in each of the words is changed to next alphabet in the English alphabetical order, how many words having two vowels (same or different vowels) will be formed ?

A
None
B
One
C
Two
D
Three
E
Four

Question 17Single Answer

Passage :

How many letters are there in the English alphabetical series between the second letter of the word which is second from the right and the second letter of the word which is second from the left of the given words?

A
Two
B
Five
C
Six
D
Nine
E
Three

Question 18Single Answer

Passage :

Direction: The following question is based on the five words given below:
AND FOR THE BIG SUM (The new words formed after performing the mentioned operations may or may not necessarily the meaningful English words.)

If in each of the given words, each of the consonant is changed to previous letter and each vowel is changed to next letter in the English alphabetical series, in how many words thus formed will no vowels appear?

A
None
B
One
C
Two
D
Three
E
More than three

Question 19Single Answer

Passage :

Direction : Following question is based on five words given below:
BRU LEGINKCATOWN
(The new words formed after performing the mentioned operations may or may not necessarily be meaningful English words)

If the third alphabet in each of the words is changed to the next alphabet in the English alphabetical order, how many words having two vowels (same or different vowels) will be formed?

A
None
B
One
C
Two
D
Three
E
Four

Question 20Single Answer

Passage :

If the position of the first and the second alphabets of each of the words are interchanged, which of the following will form a meaningful English word?

A
Both CAT and OWN
B
Both BRU and INK
C
Only CAT
D
Only INK
E
Only LEG

Question 21Single Answer

Passage :

Direction: Following question is based on five words given below:
BRU LEGINKCATOWN
(The new words formed after performing the mentioned operations may or may not necessarily be meaningful English words)

If the given words are arranged in the order as they would appear in a dictionary from left to right, which of the following will be exactly in the middle of the five words?

A
OWN
B
LEG
C
BRU
D
CAT
E
INK

Question 22Single Answer

Passage :

Direction: Following question is based on five words given below:
BRU LEGINKCATOWN
(The new words formed after performing the mentioned operations may or may not necessarily be meaningful English words)

If in each of the given words, each of the consonants is changed to previous letter and each vowel is changed to next letter in the English alphabetical series, in how many words thus formed will the same alphabet appear twice?

A
None
B
One
C
Two
D
Three
E
More than three

Question 23Single Answer

Passage :

Find the missing number in the following series ?

3, 5, 5, 19, 7, 41, 9, ?

A
71
B
61
C
79
D
69

Question 24Single Answer

Passage :

Direction: following question is based on five words given below:
LAP BUT CAR SON HID
(The new words formed after performing the mentioned operations may or may not necessarily be meaningful English words.)

If the positions of the first and the third alphabets of each of the words are interchanged, which of the following would form meaningful words with the new arrangement?

A
HID
B
SON
C
Both LAP and BUT
D
CAR
E
Both CAR and LAP

Question 25Single Answer

Passage :

If the given words are arranged in the order as they would appear in a dictionary from left to right, which of the following will be fourth from the left?

A
LAP
B
BUT
C
CAR
D
SON
E
HID

Question 26Single Answer

Passage :

Direction : following question is based on five words given below:
LAP BUT CAR SON HID
(The new words formed after performing the mentioned operations may or may not necessarily be meaningful English words.)

If in each of given words, each of the consonants is changed to previous letter and each vowel is changed to next letter in the English alphabetical series, in how many words thus formed will at least one vowel appear?

A
None
B
One
C
Two
D
Three
E
More than three

Question 27Single Answer

Passage :

Direction : following question is based on five words given below:
LAP BUT CAR SON HID
(The new words formed after performing the mentioned operations may or may not necessarily be meaningful English words.)

How many letters are there in the English alphabetical series between the third letter of the word which is third from the right and the first letter of the word which is first from the left of the given word?

A
Two
B
Five
C
Six
D
Nine
E
Three

Question 28Single Answer

Passage :

If second alphabet in each of the words is changed to next alphabet in the English alphabetical order, how many words having no vowels will be formed?

A
None
B
One
C
Two
D
Three
E
More than three

Question 29Single Answer

Passage :

Direction: following letter is based on the five three letter words given below:
PIN ROD DEN SAT FUN
(Note: The words formed after performing the given operations may or may not be meaningful English words.)

If all the letters in each of the words are arranged alphabetically (within the word), how many words will remain unchanged?

A
One
B
Two
C
Three
D
More than three
E
None

Question 30Single Answer

Passage :

Direction: following letter is based on the five three letter words given below:
PIN ROD DEN SAT FUN
(Note: The words formed after performing the given operations may or may not be meaningful English words.)

According to the English alphabetical series how many letters are there between the first letter of the third word and the first letter of the fifth word?

A
Two
B
One
C
None
D
Three
E
More than three

Question 31Single Answer

What is the next number in the series: 2, 4, 6, 8, ?

A
9
B
11
C
10
D
12

Question 32Single Answer

What comes next in the series: A, B, C, D, ?

Question 33Single Answer

What is the missing number in the series: 1, 4, 9, 16, ?

A
20
B
36
C
30
D
25

Question 34Single Answer

What follows in the series: 3, 6, 9, 12, ?

A
13
B
15
C
14
D
16

Question 35Single Answer

What is the next term in the series: J, F, M, A, ?

Question 36Single Answer

What comes next: 5, 10, 15, 20, ?

A
25
B
30
C
35
D
40

Question 37Single Answer

What is the missing letter: A, C, E, G, ?

Question 38Single Answer

What follows: 1, 8, 27, 64, ?

A
81
B
100
C
125
D
144

Question 39Single Answer

What is next in the series: 10, 20, 30, 40, ?

A
45
B
55
C
50
D
60

Question 40Single Answer

What comes after: Z, Y, X, W, ?

Question 41Single Answer

What is the next number: 4, 9, 16, 25, ?

A
36
B
32
C
49
D
64

Question 42Single Answer

What follows in the series: 1, 3, 5, 7, ?

A
8
B
10
C
9
D
11

Question 43Single Answer

What is the missing term: O, T, T, F, ?

Question 44Single Answer

What comes next: 7, 14, 21, 28, ?

A
35
B
32
C
30
D
42

Question 45Single Answer

What is the next letter: B, D, F, H, ?

Question 46Single Answer

What follows: 2, 3, 5, 7, ?

A
9
B
10
C
11
D
13

Question 47Single Answer

What is the missing number: 1, 2, 4, 8, ?

A
12
B
32
C
24
D
16

Question 48Single Answer

What comes after: M, T, W, T, ?

Question 49Single Answer

What is next: 50, 40, 30, 20, ?

A
15
B
0
C
5
D
10

Question 50Single Answer

What follows in the series: 121, 144, 169, 196, ?

A
225
B
256
C
289
D
324

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Mathematics

Question 51Single Answer

The elements of the set {x : x is an integer, x² : 4} can be represent as .....Z..... . Here, Z refers to

A
{–2, 2}
B
{–1, 0, 1}
C
{–2, –1, 0, 1, 2}
D
{0, 1, 2}

Question 52Single Answer

A
B
C
D
None of these

Question 53Single Answer

If Y = {x : x is a positive factor of the number 2p – 1(2p – 1), where 2p – 1 is a prime number}, then Y can be represent in roster form as

A
{2}
B
{1, 2}
C
{1, 2, 22, ....., 2p – 1}
D
{1, 2, 22, 23,.... 2p – 1, (2p – 1)}

Question 54Single Answer

The set {x : x is a positive integer less than 6 and 3x – 1 is an even number} in roster form is

A
{1, 2, 3, 4, 5}
B
{1, 2, 3, 4, 5, 6}
C
{2, 4, 6}
D
{1, 3, 5}

Question 55Single Answer

If A

B and A

B, then

A
A is called a proper subset of B
B
A is called a super set of B
C
A is not a subset of B
D
B is a subset of A

Question 56Single Answer

The number of non-empty subsets of the set{1, 2, 3, 4} is

A
15
B
14
C
16
D
17

Question 57Single Answer

The number of elements of the power set of a set containing m elements is

A
2^m – 1
B
m
C
m²
D
2^m

Question 58Single Answer

If A = {x : x = n², n = 1, 2, 3}, then number of proper subsets is

A
3
B
8
C
7
D
None of these

Question 59Single Answer

If A = {x : x = 4n + 1, 2 £ n £ 5},then number of subsets of A is

A
16
B
15
C
4
D
None of these

Question 60Single Answer

Let A and B be two non-empty subsets of a set X such that A is not a subset of B, then

A
A is always a subset of the complement of B
B
B is always a subset of A
C
A and B are always disjoint
D
A and the complement of B are always non-disjoint

Question 61Single Answer

Which of the following is/are empty set?
A = {x : x2 + x + 1 = 0 and x Î Z} B = {x : x is a prime number and 19 < x < 23}

A
A
B
B
C
Both A and B
D
None of the above

Question 62Single Answer

The set {x : x⁴ = 1 and x

R} is .....X.... set. Here, X refers to

A
empty
B
finite
C
infinite
D
singleton

Question 63Single Answer

The universal set for the sets
A = {x : x² – 5x + 6 = 0} and
B = {x : x² – 3x + 2 = 0} having least number of elements is

A
{1, 2}
B
{1, 3}
C
{1, 2, 3}
D
{0, 1, 2, 3}

Question 64Single Answer

If A = {1, 2, 3}, B = {x € R : x2 – 2x + 1 = 0},

C = {1, 2, 2, 3} and

D = {x € R : x3 – 6x2 + 11x – 6 = 0}, then the equal sets are

A
A and B
B
A and C
C
A, B and C
D
A, C and D

Question 65Single Answer

If A = (–3, 5) and B = [–7, 9], then

A
A = B
B
A B
C
B A
D
None of these

Question 66Single Answer

Two finite sets have m and n elements, respectively. The total number of subsets of first set is 56 more than the total number of subsets of the second set. The value of m and n respectively are

A
7, 6
B
5, 1
C
6, 3
D
8, 7

Question 67Single Answer

Combine terms: 12a + 26b - 4b – 16a .

A
4a + 22b
B
-28a + 30b
C
-4a + 22b
D
28a + 30b

Question 68Single Answer

The average of first 50 natural numbers is ………… .

A
25.30
B
25.5
C
25.00
D
12.25

Question 69Single Answer

60 Times of 8 Equals to

A
480
B
300
C
250
D
400

Question 70Single Answer

Consider the sets

A = {x : x is a real number and x² + 1 = 0}

B = {x : x is a real number and x² – 16 = 0}

C = {x : x is a real number and x² = x + 2}

Which of the following is are null set ?

A
A
B
A and B
C
A and C
D
A, B and C

Question 71Single Answer

If X = {4n – 3n – 1: n Î N} and Y = {9(n – 1): n Î N}; where N is the set of natural numbers, then X È Y is equal to

A
N
B
Y – X
C
X
D
Y

Question 72Single Answer

Which of the following is / are correct?

I. {2, 3, 4} {1, 2, 3, 4, 5}

II. {a, b, c} {b, c, d}

III. {x : x is an equilateral triangle in a plane} Ì {x : x is a triangle in the same plane}

IV. {x : x is an even natural number} {x : x is an integer}

A
I and III are correct
B
II and III are correct
C
Only IV is correct
D
All above are correct

Question 73Single Answer

Question 74Single Answer

Consider the following statements :
1. The set of all irrational numbers between √2 and √5 is an infinite set .
2. The set of all odd integers less than 100 is a finite set .
Which of the statements given above is/are correct ?

A
1 only
B
2 only
C
Both 1 and 2
D
Neither 1 nor 2

Question 75Single Answer

What is the Next Prime Number after 7 ?

A
13
B
12
C
14
D
11

Question 76Single Answer

If A and B are two given sets, then A

B)^C is equal to

Question 77Single Answer

121 Divided by 11 is

A
11
B
10
C
19
D
18

Question 78Single Answer

Let X be the universal set for sets A and B, if n(A) = 200, n(B) = 300 and n

= 100, then n

is equal to 300 provided n(X) is equal to

A
600
B
700
C
800
D
900

Question 79Single Answer

A
{3, 4, 10}
B
{2, 8, 10}
C
{4, 5, 6}
D
{3, 5, 14}

Question 80Single Answer

Let A = {x : x is a prime factor of 240} B = {x : x is the sum of any two prime factors of 240}, then

Question 81Single Answer

In a college

part girls and

part boys attended a social camp. How many parts in the collegs students attended the camp ?

A
B
C
D
E
None of the above

Question 82Single Answer

The sum of two number is 16 and their difference is 2. What is the product to both numbers ?

A
35
B
56
C
56
D
72

Question 83Single Answer

What are the positive factors of 160 .

A
6
B
8
C
5
D
12

Question 84Single Answer

What is the value of (51 + 52 + 53 ........100) ?

A
1325
B
5050
C
3775
D
3325

Question 85Single Answer

What is the sum of all natural numbers that come in the between 1 to 100, which a multiple of 7 ?

A
735
B
745
C
675
D
705

Question 86Single Answer

What is the unit digit of 279 + 167 × 342 ?

Question 87Single Answer

Which of the given values is completely divisible by 15 ?

A
2365
B
1375
C
4365
D
2275

Question 88Single Answer

For which value of M, the divisor 34M fully divisible by 12 ?

Question 89Single Answer

If 432p1 is completely divisiable 34M fully divisiable by 12 ?

Question 90Single Answer

Which is the smallest number to be added to 100, so that the resulting number is completely divisible by 6 ?

Question 91Single Answer

When a number is divided by 80, the remainded is 20. When the same number is divided by 16, what will be the remainder ?

Question 92Single Answer

Which of the fractions is the largest among

and

A
B
C
D
All are equal

Question 93Single Answer

What is the two digits largest prime number ?

A
91
B
93
C
97
D
99

Question 94Single Answer

What is the sum of first 15 odd natural numbers ?

A
255
B
225
C
235
D
215

Question 95Single Answer

What will be the sum of all natural numbers from 75 to 97 ?

A
1598
B
1978
C
1798
D
1958

Question 96Single Answer

If the quotient

of is positive, which of the following would be true ?

A
a > 0
B
b > 0
C
ab > 0
D
a + b > 0

Question 97Single Answer

If the last two digits of a three-digit number is multiple of 6, then the original integer will always be divisible by ?

A
6
B
3
C
2
D
12

Question 98Single Answer

Find three consecutive numbers, in which sum of the two times of the first, three of second and four time of the third number os 191 ?

A
19, 20, 21
B
21, 22, 23
C
20, 21, 22
D
22, 23, 24

Question 99Single Answer

An office has 108 table and 132 chairs. If

tables and

of the chairs are broken, then how many people can work in the office, if required 1 table and 1 chair ?

A
86
B
90
C
90
D
99

Question 100Single Answer

If the sum of two numbers is a and the product is b, then what will be the sum of their reciprocal ?

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