Search Previous Year Questions

Find real questions from previous competitive exam papers with answers and solutions.

Leave the keyword blank to browse saved questions for your selected exam, newest papers first. Add a keyword, year or topic to narrow the results.

Browse complete papers
Showing 10 question(s)
Clear

Question 311

DSSSB Assistant Superintendent 2026• General intelligence and Reasoning Ability1

Based on the English alphabetical order, three of the following four letter-clusters are alike in a certain way and thus form a group. Which is the one that 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.)

  1. AOption (a)

    BFI

  2. BOption (b)

    ZDH

  3. COption (c)

    FJN

  4. DOption (d)

    SWA

View answer & explanation

Correct answer

Answer: (a)A.

BFI

Why this answer is correct

The logic followed here is based on the positional values of the letters in the English alphabetical order. In three of the clusters, the difference between consecutive letters is consistently +4.

  1. BFI:

  2. ZDH:

  3. FJN:

  4. SWA:

​

 

The pattern observed in ZDH, FJN, and SWA is a consistent addition of 4 to the positional value of the preceding letter. However, in BFI, the second jump is only 3.

Hence, the correct answer is "Option 1".

Question 312

DSSSB Assistant Superintendent 2026• General intelligence and Reasoning Ability1

Based on the English alphabetical order, three of the following four are alike in a certain way and thus form a group. Which is the one that 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.)

  1. AOption (a)

    NVB

  2. BOption (b)

    IQY

  3. COption (c)

    HPX

  4. DOption (d)

    OWE

View answer & explanation

Correct answer

Answer: (a)A.

NVB

Why this answer is correct

Logic: The difference between the positional values of consecutive letters in the cluster is constant (+8).

Checking the given options:

  1. NVB

  2. IQY

  3. HPX

  4. OWE

 

In all clusters except NVB, the difference between consecutive letters is +8. In NVB, the difference between the second and third letter is +6.

Hence, the correct answer is "Option 1".

Question 313

DSSSB Assistant Superintendent 2026• General intelligence and Reasoning Ability1

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

30 A 5 C 2 B 7 D 3 = ?

  1. AOption (a)

    17

  2. BOption (b)

    15

  3. COption (c)

    18

  4. DOption (d)

    16

View answer & explanation

Correct answer

Answer: (a)A.

17

Why this answer is correct

The logic followed here is the replacement of letter codes with mathematical operators and solving the expression using the BODMAS rule.

Given mappings:

ABCD
÷×+−

The given equation is:

30 A 5 C 2 B 7 D 3 = ?

Substituting the letters with their respective mathematical signs, we get:

= 30 ÷ 5 + 2 × 7 − 3

= 6 + 2 × 7 - 3

= 6 + 14 - 3

= 20 - 3

= 17

Therefore, the value that will come in place of the question mark is 17.

Question 314

DSSSB Assistant Superintendent 2026• General intelligence and Reasoning Ability1

What should come in place of ‘?’ in the given series?

310 330 329 349 347 367 ? 384 380

  1. AOption (a)

    377

  2. BOption (b)

    387

  3. COption (c)

    370

  4. DOption (d)

    364

View answer & explanation

Correct answer

Answer: (d)D.

364

Why this answer is correct

Logic followed here is.

Logic: The series follows an alternating pattern of adding 20 and subtracting consecutive natural numbers (1, 2, 3, 4...).

Therefore, the correct answer is 364.

Hence, the correct answer is "Option 4".

Question 315

DSSSB Assistant Superintendent 2026• General intelligence and Reasoning Ability1

Which two numbers should be interchanged to make the given equation correct?

21 × 3 − 7 × 4 + (45 ÷ 5) × 2 + 60 − 9 × 8 = 29

  1. AOption (a)

    9 and 7

  2. BOption (b)

    3 and 2

  3. COption (c)

    60 and 45

  4. DOption (d)

    4 and 2

View answer & explanation

Correct answer

Answer: (b)B.

3 and 2

Why this answer is correct

To solve the given mathematical equation, we must apply the BODMAS rule (Brackets, Orders, Division, Multiplication, Addition, and Subtraction).

The equation is: 21 × 3 − 7 × 4 + (45 ÷ 5) × 2 + 60 − 9 × 8 = 29

By checking the Option 2), we find the correct interchange:

Interchanging 3 and 2:

The equation becomes:

= 21 × 2 − 7 × 4 + (45 ÷ 5) × 3 + 60 − 9 × 8 = 29

= 42 - 28 + 9 × 3 + 60 - 72 = 29

= 42 - 28 + 27 + 60 - 72 = 29

= 129 - 100 = 29

= 29 = 29

Since LHS = RHS, the equation is balanced.

Therefore, the two numbers that should be interchanged are 3 and 2.

Hence, the correct answer is "Option 2".

Question 316

DSSSB Assistant Superintendent 2026• General intelligence and Reasoning Ability1

Based on the English alphabetical order, three of the following four letter-clusters are alike in a certain way and thus form a group. Which is the letter-cluster that 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.)

  1. AOption (a)

    NSO

  2. BOption (b)

    EJF

  3. COption (c)

    GLI

  4. DOption (d)

    JOK

View answer & explanation

Correct answer

Answer: (c)C.

GLI

Why this answer is correct

The logic followed here is based on the positional values of letters in the English alphabetical order.

The general pattern for the letter-clusters in the group is:

  1. First letter + 5 = Second letter
  2. Second letter − 4 = Third letter

Let's check the options:

  1. NSO

  2. EJF

  3. GLI

  4. JOK

 

 

The letter-clusters NSO, EJF, and JOK follow the same pattern (+5, −4), while GLI follows a different pattern (+5, −3).

Hence, the correct answer is "Option 3".

Question 317

DSSSB Assistant Superintendent 2026• General intelligence and Reasoning Ability1

In the following number-pairs, the second number is obtained by applying certain mathematical operations to the first number. Select the set in which the numbers are related in the same way as are the numbers of the following sets.

(NOTE : Operations should be performed on the whole numbers, without breaking down the numbers into its constituent digits. E.g. 13 – Operations on 13 such as adding / subtracting /multiplying etc. to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed.)

14, 18.8 ;

23, 27.8

  1. AOption (a)

    49, 52.8

  2. BOption (b)

    29, 31.8

  3. COption (c)

    35, 39.8

  4. DOption (d)

    43, 44.8

View answer & explanation

Correct answer

Answer: (c)C.

35, 39.8

Why this answer is correct

Logic followed here is:

Logic:  First Number + 4.8 = Second Number.

For (14, 18.8) →

Operation: 14 + 4.8 = 18.8

 

For (23, 27.8) →

Operation: 23 + 4.8 = 27.8

 

Similarly, let's find the matching set among the options:

For (35, 39.8) →

Operation: 35 + 4.8 = 39.8

Therefore, the set that follows the same logic is 35, 39.8.

Hence, the correct answer is "Option 3".

Question 318

DSSSB Assistant Superintendent 2026• General intelligence and Reasoning Ability1

Which two numbers should be interchanged to make the given equation correct?

9 × 7 − 4 × 8 + 72 ÷ 6 − 2 × 11 + 84 = 95

  1. AOption (a)

    6 and 4

  2. BOption (b)

    2 and 4

  3. COption (c)

    72 and 7

  4. DOption (d)

    8 and 9

View answer & explanation

Correct answer

Answer: (a)A.

6 and 4

Why this answer is correct

The logic followed here is the application of the BODMAS rule (Brackets, Orders, Division, Multiplication, Addition, and Subtraction) to check which pair of numbers, when interchanged, satisfies the equation.

Given Equation: 9 × 7 − 4 × 8 + 72 ÷ 6 − 2 × 11 + 84 = 95

Let's check Option (1): Interchanging 6 and 4

After interchanging 6 and 4, the equation becomes:

= 9 × 7 − 6 × 8 + 72 ÷ 4 − 2 × 11 + 84 = 95

 

= 63 - 48 + 18 - 22 + 84 = 95

= 165 - 70 = 95

= 95 = 95

As LHS = RHS (95 = 95), the equation is balanced.

Therefore, the numbers that should be interchanged are 6 and 4.

Hence, the correct answer is "Option 1".

Question 319

DSSSB Assistant Superintendent 2026• General intelligence and Reasoning Ability1

What should come in place of ‘?’ in the given series?

16 ? 52 79 112 151 196

  1. AOption (a)

    42

  2. BOption (b)

    47

  3. COption (c)

    31

  4. DOption (d)

    51

View answer & explanation

Correct answer

Answer: (c)C.

31

Why this answer is correct

Logic followed here is.

Logic: The series follows a Double Difference Pattern. The first-level differences between consecutive terms form an Arithmetic Progression with a constant common difference of 6.

 

Therefore, the number that should come in place of the question mark is 31.

Hence, the correct answer is "Option 3".

Question 320

DSSSB Assistant Superintendent 2026• General intelligence and Reasoning Ability1

GLYT is related to CGUO in a certain way based on the English alphabetical order. In the same way, QRIZ is related to MMEU. To which of the following options is ECWK related, following the same logic?

  1. AOption (a)

    AXFS

  2. BOption (b)

    AXFT

  3. COption (c)

    ASFT

  4. DOption (d)

    AXSF

View answer & explanation

Correct answer

Answer: (d)D.

AXSF

Why this answer is correct

The logic followed here is a pattern of subtraction from the positional values of the letters in the English alphabet.

For GLYT to CGUO

G(7)L(12)Y(25)T(20)
↓ −4↓ −5↓ −4↓ −5
C(3)G(7)U(21)O(15)

For QRIZ to MMEU

Q(17)R(18)I(9)Z(26)
↓ −4↓ −5↓ −4↓ −5
M(13)M(13)E(5)U(21)

The common pattern is a repeated subtraction sequence of −4, −5, −4, −5 applied to each letter.

Applying the same logic to ECWK:

E(5)C(3)W(23)K(11)
↓ −4↓ −5↓ −4↓ −5
A(1)X(24)S(19)F(6)

For the letter C, subtracting 5 results in a wraparound to the end of the alphabet: 3 − 5 = −2. In a 26-letter cycle, 26 − 2 = 24 (X).

Thus, ECWK is related to AXSF.

Hence, the correct answer is 'Option 4'.

Page 32