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IBPS RRB Office Assistant (Clerk) · Topic Collection

Quantitative Aptitude PYQs

Arithmetic, number systems, percentages, ratios, profit and loss, time and work, algebra, geometry, mensuration, and trigonometry.

1935 Total Questions49 Official PapersYears: 2018–2025Search in Quantitative Aptitude
Showing questions 601–620 of 1935Page 31 of 97
RRB Clerk Prelims Memory Based Paper (Held On: 17 August 2024 Shift 1) (Previous Year Paper)·Numerical Ability
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Question 601

IBPS RRB Office Assistant (Clerk) 2024• Numerical Ability• Numerical Ability

What will come in place of question mark (?) in the following equation?

60% of 800 + 192 ÷ 32 = 6 × ?

  1. AOption (a)

    27

  2. BOption (b)

    54

  3. COption (c)

    108

  4. DOption (d)

    81

  5. EOption (e)

    72

View answer & explanation

Correct answer

Answer: (d)D.

81

Why this answer is correct

Given:

60% of 800 + 192 ÷ 32 = 6 × ?

Concept:

Follow BODMAS rule to solve this question, as per the order given below, 

Calculation:

60% of 800 + 192 ÷ 32 = 6 × ?

⇒ 480 + 192 ÷ 32 = 6 × ?

⇒ 480 + 6 = 6 × ?

⇒ 486 = 6 × ?

⇒ 81 = ?

RRB Clerk Prelims Memory Based Paper (Held On: 17 August 2024 Shift 1) (Previous Year Paper)·Numerical Ability
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Question 602

IBPS RRB Office Assistant (Clerk) 2024• Numerical Ability• Numerical Ability

What will come in place of question mark (?) in the following equation?

25% of (15 × 24 ÷ 18 + 12) = ?

  1. AOption (a)

    12

  2. BOption (b)

    16

  3. COption (c)

    4

  4. DOption (d)

    24

  5. EOption (e)

    8

View answer & explanation

Correct answer

Answer: (e)E.

8

Why this answer is correct

Follow BODMAS rule to solve this question, as per the order given below, 

Step-1: Parts of an equation enclosed in 'Brackets' must be solved first, and in the bracket, 

Step-2: Any mathematical 'Of' or 'Exponent' must be solved next, 

Step-3: Next, the parts of the equation that contain 'Division' and 'Multiplication' are calculated, 

Step-4: Last but not least, the parts of the equation that contain 'Addition' and 'Subtraction' should be calculated

25% of (15 × 24 ÷ 18 + 12) = ?

⇒ 25% of (15 × 4/3 + 12) = ?

⇒ 25% of (5 × 4 + 12) = ?

⇒ 25% of (20 + 12) = ?

⇒ 25% of 32 = ?

⇒ ? = 8

RRB Clerk Prelims Memory Based Paper (Held On: 17 August 2024 Shift 1) (Previous Year Paper)·Numerical Ability
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Question 603

IBPS RRB Office Assistant (Clerk) 2024• Numerical Ability• Numerical Ability

What will come in place of question mark (?) in the following equation?

383.99 ÷ 11.92 × 4.14 – 119.99 = ∛?

  1. AOption (a)

    2

  2. BOption (b)

    64

  3. COption (c)

    128

  4. DOption (d)

    512

  5. EOption (e)

    729

View answer & explanation

Correct answer

Answer: (d)D.

512

Why this answer is correct

Follow BODMAS rule to solve this question, as per the order given below, 

Step-1: Parts of an equation enclosed in 'Brackets' must be solved first, and in the bracket, 

Step-2: Any mathematical 'Of' or 'Exponent' must be solved next, 

Step-3: Next, the parts of the equation that contain 'Division' and 'Multiplication' are calculated, 

Step-4: Last but not least, the parts of the equation that contain 'Addition' and 'Subtraction' should be calculated 

383.99 ÷ 11.92 × 4.14 – 119.99 = ∛?

⇒ 384 ÷ 12 × 4 – 120 = ∛?

⇒ 32 × 4 – 120 = ∛?

⇒ 128 – 120 = ∛?

⇒ 8 = ∛?

∴ ? = 512

RRB Clerk Prelims Memory Based Paper (Held On: 17 August 2024 Shift 1) (Previous Year Paper)·Numerical Ability
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Question 604

IBPS RRB Office Assistant (Clerk) 2024• Numerical Ability• Numerical Ability

What will come in place of question mark (?) in the following equation?

165 + 156 ÷ 13 – 32 × 19 = ?

  1. AOption (a)

    12

  2. BOption (b)

    6

  3. COption (c)

    16

  4. DOption (d)

    22

  5. EOption (e)

    2

View answer & explanation

Correct answer

Answer: (b)B.

6

Why this answer is correct

Follow BODMAS rule to solve this question, as per the order given below, 

Step-1: Parts of an equation enclosed in 'Brackets' must be solved first, and in the bracket, 

Step-2: Any mathematical 'Of' or 'Exponent' must be solved next, 

Step-3: Next, the parts of the equation that contain 'Division' and 'Multiplication' are calculated, 

Step-4: Last but not least, the parts of the equation that contain 'Addition' and 'Subtraction' should be calculated 

165 + 156 ÷ 13 – 32 × 19 = ?

⇒ 165 + 156 ÷ 13 – 9 × 19 = ?

⇒ 165 + 12 – 9 × 19 = ?

⇒ 165 + 12 – 9 × 19 = ?

⇒ 177 – 171 = ?

∴ ? = 6

RRB Clerk Prelims Memory Based Paper (Held On: 17 August 2024 Shift 1) (Previous Year Paper)·Numerical Ability
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Question 605

IBPS RRB Office Assistant (Clerk) 2024• Numerical Ability• Numerical Ability

What will come in place of question mark (?) in the following equation?

(20 × 45) – (70 × 3) + 360 = ? × 6

  1. AOption (a)

    125

  2. BOption (b)

    145

  3. COption (c)

    175

  4. DOption (d)

    105

  5. EOption (e)

    215

View answer & explanation

Correct answer

Answer: (c)C.

175

Why this answer is correct

Follow BODMAS rule to solve this question, as per the order given below, 

Step-1: Parts of an equation enclosed in 'Brackets' must be solved first, and in the bracket, 

Step-2: Any mathematical 'Of' or 'Exponent' must be solved next, 

Step-3: Next, the parts of the equation that contain 'Division' and 'Multiplication' are calculated, 

Step-4: Last but not least, the parts of the equation that contain 'Addition' and 'Subtraction' should be calculated 

(20 × 45) – (70 × 3) + 360 = ? × 6

⇒ 900 – 210 + 360 = ? × 6

⇒ 1260 – 210 = ? × 6

⇒ 1050 = ? × 6

∴ ? = 175

RRB Clerk Prelims Memory Based Paper (Held On: 17 August 2024 Shift 1) (Previous Year Paper)·Numerical Ability
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Question 606

IBPS RRB Office Assistant (Clerk) 2024• Numerical Ability• Numerical Ability

What will come in place of question mark (?) in the following equation?

40% of 450 + 85% of 800 = ?

  1. AOption (a)

    960

  2. BOption (b)

    860

  3. COption (c)

    920

  4. DOption (d)

    820

  5. EOption (e)

    900

View answer & explanation

Correct answer

Answer: (b)B.

860

Why this answer is correct

Follow BODMAS rule to solve this question, as per the order given below, 

Step-1: Parts of an equation enclosed in 'Brackets' must be solved first, and in the bracket, 

Step-2: Any mathematical 'Of' or 'Exponent' must be solved next, 

Step-3: Next, the parts of the equation that contain 'Division' and 'Multiplication' are calculated, 

Step-4: Last but not least, the parts of the equation that contain 'Addition' and 'Subtraction' should be calculated 

40% of 450 + 85% of 800 = ?

⇒ 180 + 680 = ?

∴ ? = 860

RRB Clerk Prelims Memory Based Paper (Held On: 17 August 2024 Shift 1) (Previous Year Paper)·Numerical Ability
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Question 607

IBPS RRB Office Assistant (Clerk) 2024• Numerical Ability• Numerical Ability

What will come in the place of the question mark ‘?’ in the following question?

(16/23 × 47/288 × 92/141) + ? = 1/9

  1. AOption (a)

    1/21

  2. BOption (b)

    1/9

  3. COption (c)

    1/3

  4. DOption (d)

    1/27

  5. EOption (e)

    1/18

View answer & explanation

Correct answer

Answer: (d)D.

1/27

Why this answer is correct

Follow BODMAS rule to solve this question, as per the order given below.

Step - 1: Parts of an equation enclosed in 'Brackets' must be solved first, and following BODMAS rule in the bracket -

Step - 2: Any mathematical 'Of' or 'Exponent' must be solved next.

Step - 3: Next, the parts of the equation that contain 'Division' and 'Multiplication' are calculated.

Step - 4: Last but not the least, the parts of the equation that contain 'Addition' and 'Subtraction' should be calculated.

Given expression is

(16/23 × 47/288 × 92/141) + ?  = 1/9

⇒ (16/23 × 47/288 × 92/141) + ?  = 1/9

⇒ (4 × 1/72 × 4/3) + ?  = 1/9

⇒ (4 × 1/18 × 1/3) + ?  = 1/9

⇒ (2/27) + ?  = 1/9 × 3/3

⇒  ? = 3/27 – 2/27

∴ ? = 1/27

RRB Clerk Prelims Memory Based Paper (Held On: 17 August 2024 Shift 1) (Previous Year Paper)·Numerical Ability
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Question 608

IBPS RRB Office Assistant (Clerk) 2024• Numerical Ability• Numerical Ability

What will come in the place of the question mark ‘?’ in the following question?

(963 – 221) × (? + 2)2 = 36358

  1. AOption (a)

    10

  2. BOption (b)

    2

  3. COption (c)

    5

  4. DOption (d)

    12

  5. EOption (e)

    15

View answer & explanation

Correct answer

Answer: (c)C.

5

Why this answer is correct

(963 – 221) × (? + 2)2= 36358

⇒ (742) × (? + 2)2= 36358

⇒ (? + 2)2 = 36358/742

⇒ (? + 2)2 = 49

⇒ (? + 2) = 7

⇒  ? = 5

∴ ? = 5

RRB Clerk Prelims Memory Based Paper (Held On: 17 August 2024 Shift 1) (Previous Year Paper)·Numerical Ability
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Question 609

IBPS RRB Office Assistant (Clerk) 2024• Numerical Ability• Numerical Ability

What will come in the place of the question mark ‘?’ in the following question?

92 × 22 + 164 + 968 – 27 × 16 = ?

  1. AOption (a)

    28

  2. BOption (b)

    213

  3. COption (c)

    211

  4. DOption (d)

    210

  5. EOption (e)

    29

View answer & explanation

Correct answer

Answer: (d)D.

210

Why this answer is correct

92 × 22 + 164 + 968 – 27 × 16 = ?

⇒ 81 × 4 + 164 + 968 – 27 × 16 = ?

⇒ 324 + 164 + 968 – 432 = ?

⇒ 1024 = ?

∴ ? = 210

RRB Clerk Prelims Memory Based Paper (Held On: 17 August 2024 Shift 1) (Previous Year Paper)·Numerical Ability
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Question 610

IBPS RRB Office Assistant (Clerk) 2024• Numerical Ability• Numerical Ability

What will come in the place of the question mark ‘?’ in the following question?

600 + 38% of ? = 602 – 32 – 22

  1. AOption (a)

    7200

  2. BOption (b)

    7800

  3. COption (c)

    7600

  4. DOption (d)

    7400

  5. EOption (e)

    8200

View answer & explanation

Correct answer

Answer: (b)B.

7800

Why this answer is correct

Follow BODMAS rule to solve this question, as per the order given below.

Step - 1: Parts of an equation enclosed in 'Brackets' must be solved first, and following BODMAS rule in the bracket -

Step - 2: Any mathematical 'Of' or 'Exponent' must be solved next.

Step - 3: Next, the parts of the equation that contain 'Division' and 'Multiplication' are calculated.

Step - 4: Last but not the least, the parts of the equation that contain 'Addition' and 'Subtraction' should be calculated.

Given expression is

600 + 38% of ? = 602 – 32 – 22

⇒ 600 + 38% of ? = 3600 – 32 – 4

⇒ 38% of ? = 3000 – 32 – 4

⇒ 38% of ? = 2964

⇒ ? = 2964/38 × 100

⇒ ? = 7800

∴ ? = 7800

RRB Clerk Prelims Memory Based Paper (Held On: 17 August 2024 Shift 1) (Previous Year Paper)·Numerical Ability
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Question 611

IBPS RRB Office Assistant (Clerk) 2024• Numerical Ability• Numerical Ability

What will come in the place of the question mark ‘?’ in the following question?

242/16 + (33 + 1) × (23 – 1) – 199 = ?

  1. AOption (a)

    31

  2. BOption (b)

    33

  3. COption (c)

    35

  4. DOption (d)

    37

  5. EOption (e)

    39

View answer & explanation

Correct answer

Answer: (b)B.

33

Why this answer is correct

242/16 + (33 + 1) × (23 – 1) – 199 = ?

⇒ 576/16 + (28) × (7) – 199 = ?

⇒ 36 + 196 – 199 = ?

⇒ 33 = ?

∴ ? = 33

RRB Clerk Prelims Memory Based Paper (Held On: 17 August 2024 Shift 1) (Previous Year Paper)·Numerical Ability
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Question 612

IBPS RRB Office Assistant (Clerk) 2024• Numerical Ability• Numerical Ability

What will come in the place of the question mark ‘?’ in the following question?

12% of 900 + 13% of 1200 – 102 = ?

  1. AOption (a)

    138

  2. BOption (b)

    160

  3. COption (c)

    187

  4. DOption (d)

    162

  5. EOption (e)

    164

View answer & explanation

Correct answer

Answer: (d)D.

162

Why this answer is correct

Follow BODMAS rule to solve this question, as per the order given below.

Step - 1: Parts of an equation enclosed in 'Brackets' must be solved first, and following BODMAS rule in the bracket -

Step - 2: Any mathematical 'Of' or 'Exponent' must be solved next.

Step - 3: Next, the parts of the equation that contain 'Division' and 'Multiplication' are calculated.

Step - 4: Last but not the least, the parts of the equation that contain 'Addition' and 'Subtraction' should be calculated.

Given expression is

12% of 900 + 13% of 1200 – 102 = ?

⇒ 108 + 156 – 102 = ?

⇒ 162 = ?

∴ ? = 162

RRB Clerk Prelims Memory Based Paper (Held On: 17 August 2024 Shift 1) (Previous Year Paper)·Numerical Ability
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Question 613

IBPS RRB Office Assistant (Clerk) 2024• Numerical Ability• Numerical Ability

The average weight of a group of members increased from 28 kg to 32 kg, when three new members of weight 32 kg, 34 kg and 46 kg join the group. Find the initial number of members in the group.

  1. AOption (a)

    4

  2. BOption (b)

    5

  3. COption (c)

    6

  4. DOption (d)

    7

  5. EOption (e)

    8

View answer & explanation

Correct answer

Answer: (a)A.

4

Why this answer is correct

Given:

Initial average of the group = 28 kg

Final average after three members were included = 32 kg

Weights of members included in the group = 32 kg, 34 kg and 46 kg

Formula used:

Average = Sum of observations/ Number of observations

Calculation:

Let the number of members initially in the group be x

Initial sum of observations = (28 × x)

Total number of observations when three new members joined the group

⇒ [(28 × x) + (32 + 34 + 46)]

Total number of members in the group after three members were added

⇒ (x + 3)

According to Question,

[(28 × x) + (32 + 34 + 46)]/(x + 3) = 32

⇒ [28x + 112]/(x + 3) = 32

⇒ [28x + 112] = 32 × (x + 3)

⇒ 28x + 112 = 32x + 96

⇒ 112 – 96 = 32x – 28x

⇒ 16 = 4x

⇒ x = 4

∴ The initial number of members in a group is 4.

RRB Clerk Prelims Memory Based Paper (Held On: 17 August 2024 Shift 1) (Previous Year Paper)·Numerical Ability
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Question 614

IBPS RRB Office Assistant (Clerk) 2024• Numerical Ability• Numerical Ability

A and B invest ₹4,500 and ₹1,800, respectively, in a business. A withdraws his investment after 6 months, while B continues for the entire year. What will be the profit ratio between A and B after 1 year?

  1. AOption (a)

    5 : 4

  2. BOption (b)

    3 : 7

  3. COption (c)

    4 : 5

  4. DOption (d)

    1 : 2

  5. EOption (e)

    5 : 7

View answer & explanation

Correct answer

Answer: (a)A.

5 : 4

Why this answer is correct

Given:

Investment of A = ₹4,500

Investment of B = ₹1,800

A's investment duration = 6 months

B's investment duration = 12 months

Formula used:

Profit ratio = (Investment of A × Time of A) : (Investment of B × Time of B)

Calculation:

Profit ratio = (4500 × 6) : (1800 × 12)

⇒ Profit ratio = 27,000 : 21,600

⇒ Profit ratio = 5 : 4

∴ The profit ratio after 1 year is 5:4.

RRB Clerk Prelims Memory Based Paper (Held On: 17 August 2024 Shift 1) (Previous Year Paper)·Numerical Ability
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Question 615

IBPS RRB Office Assistant (Clerk) 2024• Numerical Ability• Numerical Ability

The side of a square is 16 cm. The perimeter of a rectangle is double the perimeter of the square. If the breadth of the rectangle is 20 cm, what is the length of the rectangle?

  1. AOption (a)

    32

  2. BOption (b)

    44

  3. COption (c)

    56

  4. DOption (d)

    25

  5. EOption (e)

    64

View answer & explanation

Correct answer

Answer: (b)B.

44

Why this answer is correct

Given:

Side of square = 16 cm

Perimeter of rectangle = 2 × Perimeter of square

Breadth of rectangle = 20 cm

Formula used:

Perimeter of square = 4 × side

Perimeter of rectangle = 2 × (Length + Breadth)

Calculation:

Perimeter of square = 4 × 16 = 64 cm

Perimeter of rectangle = 2 × 64 = 128 cm

128 = 2 × (Length + 20)

⇒ 128 = 2 × Length + 40

⇒ 2 × Length = 128 - 40

⇒ 2 × Length = 88

⇒ Length = 44 cm

∴ The length of the rectangle is 44 cm.

RRB Clerk Prelims Memory Based Paper (Held On: 18 August 2024 Shift 2) (Previous Year Paper)·Numerical Ability
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Question 616

IBPS RRB Office Assistant (Clerk) 2024• Numerical Ability• Numerical Ability

The given table shows the number of tourists visit in five tourist spots [A, B, C, D and E] in the month of July and August.

Tourist spotNumber of Tourist in JulyNumber of Tourist in August
A32002400
B28003600
C24003200
D20003000
E45003500

Find the ratio between number of tourists in August in B and D?

  1. AOption (a)

    2:3

  2. BOption (b)

    4:7

  3. COption (c)

    6:5

  4. DOption (d)

    4:3

  5. EOption (e)

    3:2

View answer & explanation

Correct answer

Answer: (c)C.

6:5

Why this answer is correct

Calculation

Number of tourists in August in B = 3600

Number of tourists in August in D = 3000

Ratio = 3600 : 3000 = 6 : 5

RRB Clerk Prelims Memory Based Paper (Held On: 18 August 2024 Shift 2) (Previous Year Paper)·Numerical Ability
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Question 617

IBPS RRB Office Assistant (Clerk) 2024• Numerical Ability• Numerical Ability

The given table shows the number of tourists visit in five tourist spots [A, B, C, D and E] in the month of July and August.

Tourist spotNumber of Tourist in JulyNumber of Tourist in August
A32002400
B28003600
C24003200
D20003000
E45003500

Ratio of number of tourists in July in E and F is 5 : 6. Number Tourist visit in F in August is 450 more than the same in July. Find the number of Tourist in August in F?

  1. AOption (a)

    6540

  2. BOption (b)

    7540

  3. COption (c)

    6550

  4. DOption (d)

    5850

  5. EOption (e)

    2250

View answer & explanation

Correct answer

Answer: (d)D.

5850

Why this answer is correct

Calculation

July tourists in E = 4500

Let Number of tourists in July in F is x.

Then,

 4500 : x = 5 : 6

⇒ 5x = 27000

⇒ x = 5400

So, July tourists in F = 5400

August = 5400 + 450 = 5850

RRB Clerk Prelims Memory Based Paper (Held On: 18 August 2024 Shift 2) (Previous Year Paper)·Numerical Ability
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Question 618

IBPS RRB Office Assistant (Clerk) 2024• Numerical Ability• Numerical Ability

The given table shows the number of tourists visit in five tourist spots [A, B, C, D and E] in the month of July and August.

Tourist spotNumber of Tourist in JulyNumber of Tourist in August
A32002400
B28003600
C24003200
D20003000
E45003500

Find the difference between number total number of tourists in July in C and D together and total number of tourists in August in C and D together?

  1. AOption (a)

    2800

  2. BOption (b)

    1800

  3. COption (c)

    1200

  4. DOption (d)

    1600

  5. EOption (e)

    2400

View answer & explanation

Correct answer

Answer: (b)B.

1800

Why this answer is correct

Calculations:

Tourists in July in C and D together = 2400 + 2000 = 4400

Tourists in August in C and D together = 3200 + 3000 = 6200

Difference = 6200 - 4400 = 1800

∴ The difference between the total number of tourists in July in C and D together and the total number of tourists in August in C and D together is 1800.

RRB Clerk Prelims Memory Based Paper (Held On: 18 August 2024 Shift 2) (Previous Year Paper)·Numerical Ability
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Question 619

IBPS RRB Office Assistant (Clerk) 2024• Numerical Ability• Numerical Ability

The given table shows the number of tourists visit in five tourist spots [A, B, C, D and E] in the month of July and August.

Tourist spotNumber of Tourist in JulyNumber of Tourist in August
A32002400
B28003600
C24003200
D20003000
E45003500

Number of Tourist visit in September in B is 25% more than the number of tourists in August in B. So, Find the number of tourists in September in B?

  1. AOption (a)

    5500

  2. BOption (b)

    4600

  3. COption (c)

    4900

  4. DOption (d)

    4500

  5. EOption (e)

    4200

View answer & explanation

Correct answer

Answer: (d)D.

4500

Why this answer is correct

Calculations:

Number of tourists in August in B = 3600

Tourists in September = Tourists in August + 25% of Tourists in August

Tourists in September = 3600 + (25/100) × 3600

⇒ Tourists in September = 3600 + 900

⇒ Tourists in September = 4500

∴ The number of tourists in September in B is 4500.

RRB Clerk Prelims Memory Based Paper (Held On: 18 August 2024 Shift 2) (Previous Year Paper)·Numerical Ability
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Question 620

IBPS RRB Office Assistant (Clerk) 2024• Numerical Ability• Numerical Ability

The given table shows the number of tourists visit in five tourist spots [A, B, C, D and E] in the month of July and August.

Tourist spotNumber of Tourist in JulyNumber of Tourist in August
A32002400
B28003600
C24003200
D20003000
E45003500

Ratio of male and female tourist in spot A in July and August together is 3:2. Difference between Male and female tourist in spot in July and August is x. Find the value of 7x?

  1. AOption (a)

    8890

  2. BOption (b)

    7840

  3. COption (c)

    7260

  4. DOption (d)

    7790

  5. EOption (e)

    8460

View answer & explanation

Correct answer

Answer: (b)B.

7840

Why this answer is correct

Calculation

Total tourists in A = 3200 (July) + 2400 (August) = 5600

Ratio (M : F) = 3 : 2

Let males = (3/5) × 5600 = 3360

Females = (2/5) × 5600 = 2240

Difference (x) = 3360 − 2240 = 1120

Then, 7x = 7 × 1120 = 7840

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How should I prepare for Quantitative Aptitude in IBPS RRB Office Assistant (Clerk)?

Solving previous year questions by topic helps identify recurring concepts, question patterns, and frequently asked sub-topics. Attempt each question, review the step-by-step explanation, and note down key formulas or facts for quick revision before the exam.