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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 281–300 of 1935Page 15 of 97
RRB Clerk Prelims Memory Based Paper (Held On: 06 Dec 2025 Shift 1) (Previous Year Paper)·Numerical Ability
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Question 281

IBPS RRB Office Assistant (Clerk) 2025• Numerical Ability• Numerical Ability

The bar graph shows the number of males in five different offices [A, B, C, D and E].

Number of females in F is 6 more than number of males in F. Number of males in F is 25% more than the number of males in E. Find the number of females in F?

  1. AOption (a)

    35

  2. BOption (b)

    36

  3. COption (c)

    32

  4. DOption (d)

    42

  5. EOption (e)

    48

View answer & explanation

Correct answer

Answer: (b)B.

36

Why this answer is correct

Calculation

Males in E = 24.

Males in F = 24 × 1.25 = 30.

Females in F = 30 + 6 = 36.

RRB Clerk Prelims Memory Based Paper (Held On: 06 Dec 2025 Shift 1) (Previous Year Paper)·Numerical Ability
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Question 282

IBPS RRB Office Assistant (Clerk) 2025• Numerical Ability• Numerical Ability

The bar graph shows the number of males in five different offices [A, B, C, D and E].

Find the ratio between number of males in C and D?

  1. AOption (a)

    6:7

  2. BOption (b)

    11:13

  3. COption (c)

    2:3

  4. DOption (d)

    4:5

  5. EOption (e)

    7:8

View answer & explanation

Correct answer

Answer: (c)C.

2:3

Why this answer is correct

Calculation

C = 32, D = 48 → Ratio = 32 : 48 = 2 : 3.

RRB Clerk Prelims Memory Based Paper (Held On: 06 Dec 2025 Shift 1) (Previous Year Paper)·Numerical Ability
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Question 283

IBPS RRB Office Assistant (Clerk) 2025• Numerical Ability• Numerical Ability

The bar graph shows the number of males in five different offices [A, B, C, D and E].

Sum of males in A and C together is (7t + 6). Find the value of t?

  1. AOption (a)

    16

  2. BOption (b)

    18

  3. COption (c)

    10

  4. DOption (d)

    12

  5. EOption (e)

    17

View answer & explanation

Correct answer

Answer: (c)C.

10

Why this answer is correct

Calculation

A + C = 44 + 32 = 76.

7t + 6 = 76 → 7t = 70 → t = 10.

RRB Clerk Prelims Memory Based Paper (Held On: 06 Dec 2025 Shift 1) (Previous Year Paper)·Numerical Ability
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Question 284

IBPS RRB Office Assistant (Clerk) 2025• Numerical Ability• Numerical Ability

Find the wrong term in the following series.  

2, 3, 6, 15, 56, 285

  1. AOption (a)

    3

  2. BOption (b)

    6

  3. COption (c)

    56

  4. DOption (d)

    285

  5. EOption (e)

    15

View answer & explanation

Correct answer

Answer: (b)B.

6

Why this answer is correct

2 × 1 + 1 = 3

3 × 2 – 2 = 4

4 × 3 + 3 = 15

15 × 4 - 4 = 56

56 × 5 + 5 = 285

RRB Clerk Prelims Memory Based Paper (Held On: 06 Dec 2025 Shift 1) (Previous Year Paper)·Numerical Ability
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Question 285

IBPS RRB Office Assistant (Clerk) 2025• Numerical Ability• Numerical Ability

Find the missing number in the given series.

8, 27, 125, 343, ?, 2197

  1. AOption (a)

    125

  2. BOption (b)

    343

  3. COption (c)

    1331

  4. DOption (d)

    27

  5. EOption (e)

    729

View answer & explanation

Correct answer

Answer: (c)C.

1331

Why this answer is correct

GIVEN :

8, 27, 125, 343, ?, 2197

EXPLANATION :

Logic: Given series follows the logic of the cube of prime numbers starting from 2.

8 = 23

27 = 33

125 = 53

343 = 73

? = 113 = 1331

2197 = 133

Hence, the missing term is 1331.

RRB Clerk Prelims Memory Based Paper (Held On: 06 Dec 2025 Shift 1) (Previous Year Paper)·Numerical Ability
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Question 286

IBPS RRB Office Assistant (Clerk) 2025• Numerical Ability• Numerical Ability

In the following number series, a wrong number is given. Find out the wrong number.

4, 2, 1.5, 1.5, 0.25, 0.75

  1. AOption (a)

    0.25

  2. BOption (b)

    4

  3. COption (c)

    0.75

  4. DOption (d)

    1.5

  5. EOption (e)

    2

View answer & explanation

Correct answer

Answer: (a)A.

0.25

Why this answer is correct

4 × 0.5 = 2

2 - 0.5 = 1.5

1.5 × 1 = 1.5

1.5 - 1 = 0.5

0.5 × 1.5 = 0.75

RRB Clerk Prelims Memory Based Paper (Held On: 06 Dec 2025 Shift 1) (Previous Year Paper)·Numerical Ability
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Question 287

IBPS RRB Office Assistant (Clerk) 2025• Numerical Ability• Numerical Ability

Direction: A number is wrong in the following number series. Select the wrong number.

64, 96, 360, 840, 3780, 20790

  1. AOption (a)

    96

  2. BOption (b)

    840

  3. COption (c)

    360

  4. DOption (d)

    20790

  5. EOption (e)

    3780

View answer & explanation

Correct answer

Answer: (c)C.

360

Why this answer is correct

The pattern of the above series is as follows,

64 × 1.5 = 96

96 × 2.5 = 240

240 × 3.5 = 840

840 × 4.5 = 3780

3780 × 5.5 = 20790

RRB Clerk Prelims Memory Based Paper (Held On: 06 Dec 2025 Shift 1) (Previous Year Paper)·Numerical Ability
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Question 288

IBPS RRB Office Assistant (Clerk) 2025• Numerical Ability• Numerical Ability

Direction: A number is wrong in the following number series. Select the wrong number.

100, 150, 250, 350, 450, 650

  1. AOption (a)

    100

  2. BOption (b)

    450

  3. COption (c)

    250

  4. DOption (d)

    350

  5. EOption (e)

    150

View answer & explanation

Correct answer

Answer: (b)B.

450

Why this answer is correct

GIVEN :

100, 150, 250, 350, 450, 650

CALCULATION :

The pattern of the above series is as follows,

50 is multiplied by prime numbers

50 × 2 = 100

50 × 3 = 150

50 × 5 = 250

50 × 7 = 350

50 × 11 = 550

50 × 13 = 650

RRB Clerk Prelims Memory Based Paper (Held On: 06 Dec 2025 Shift 1) (Previous Year Paper)·Numerical Ability
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Question 289

IBPS RRB Office Assistant (Clerk) 2025• Numerical Ability• Numerical Ability

40% of number is 68 more than 30% of another number. Sum of two number is 520. Find the value of larger number?

  1. AOption (a)

    400

  2. BOption (b)

    380

  3. COption (c)

    320

  4. DOption (d)

    360

  5. EOption (e)

    300

View answer & explanation

Correct answer

Answer: (c)C.

320

Why this answer is correct

Given:

40% of first number = 30% of second number + 68

Sum of numbers = 520

Calculations:

Let first number = x, second number = y

0.4x = 0.3y + 68

x + y = 520

⇒ 0.4x − 0.3y = 68

⇒ 4x − 3y = 680 (multiplying by 10)

x + y = 520

⇒ Multiply second eqn by 3:

⇒ 3x + 3y = 1560

Add with first:

⇒ (4x − 3y) + (3x + 3y) = 680 + 1560

⇒ 7x = 2240

⇒ x = 320

⇒ y = 520 − 320 = 200

Larger number = 320

∴ The larger number is 320.

RRB Clerk Prelims Memory Based Paper (Held On: 06 Dec 2025 Shift 1) (Previous Year Paper)·Numerical Ability
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Question 290

IBPS RRB Office Assistant (Clerk) 2025• Numerical Ability• Numerical Ability

A 240 m long train cross a 160 m long platform in 20 sec. Find the time taken by train to cross a pole?

  1. AOption (a)

    15

  2. BOption (b)

    9

  3. COption (c)

    12

  4. DOption (d)

    10

  5. EOption (e)

    8

View answer & explanation

Correct answer

Answer: (c)C.

12

Why this answer is correct

Given:

Train length = 240 m

Platform length = 160 m

Time to cross platform = 20 sec

Formula used:

Total distance while crossing platform = Train length + Platform length

Speed = Distance ÷ Time

Time to cross pole = Train length ÷ Speed

Calculations:

⇒ Total distance = 240 + 160 = 400 m

⇒ Speed = 400 ÷ 20 = 20 m/s

⇒ Time to cross pole = 240 ÷ 20

⇒ Time = 12 sec

∴ Train will cross the pole in 12 seconds.

RRB Clerk Prelims Memory Based Paper (Held On: 06 Dec 2025 Shift 1) (Previous Year Paper)·Numerical Ability
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Question 291

IBPS RRB Office Assistant (Clerk) 2025• Numerical Ability• Numerical Ability

Cost of 6 pen and 9 pencils is 150. Find the cost of ¾ of [12 pen  and 18 pencils]?

  1. AOption (a)

    262

  2. BOption (b)

    292

  3. COption (c)

    225

  4. DOption (d)

    265

  5. EOption (e)

    285

View answer & explanation

Correct answer

Answer: (c)C.

225

Why this answer is correct

Given:

Cost of 6 pens + 9 pencils = 150

Calculations:

Cost of 12 pens + 18 pencils = 2 × (6 pens + 9 pencils)

Required cost = 3/4 × Total cost

⇒ Cost of (12 pens + 18 pencils) = 2 × 150 = 300

⇒ Required cost = 3/4 × 300

⇒ 225

∴ Cost of ¾ of (12 pens + 18 pencils) = 225.

RRB Clerk Prelims Memory Based Paper (Held On: 06 Dec 2025 Shift 1) (Previous Year Paper)·Numerical Ability
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Question 292

IBPS RRB Office Assistant (Clerk) 2025• Numerical Ability• Numerical Ability

The table shows number of car and scooter sold in five different showrooms [A, B, C, D and E].

ShowroomNumber of cars soldNumber of scooters sold
A180120
B160250
C200240
D150200
E220180

Find the ratio between number of cars sold in showroom sold in A and B together and number of scooters sold in showroom sold in D and E together?

  1. AOption (a)

    17:13

  2. BOption (b)

    5:6

  3. COption (c)

    17:19

  4. DOption (d)

    7:9

  5. EOption (e)

    11:19

View answer & explanation

Correct answer

Answer: (c)C.

17:19

Why this answer is correct

Calculation

Cars (A+B) = 180 + 160 = 340

Scooters (D+E) = 200 + 180 = 380

Ratio = 340 : 380 = 17 : 19

RRB Clerk Prelims Memory Based Paper (Held On: 06 Dec 2025 Shift 1) (Previous Year Paper)·Numerical Ability
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Question 293

IBPS RRB Office Assistant (Clerk) 2025• Numerical Ability• Numerical Ability

The table shows number of car and scooter sold in five different showrooms [A, B, C, D and E].

ShowroomNumber of cars soldNumber of scooters sold
A180120
B160250
C200240
D150200
E220180

Out of total number of scooters sold in showroom D, 40% are electric scooters. Find number of electrics sold in showroom D?

  1. AOption (a)

    75

  2. BOption (b)

    77

  3. COption (c)

    80

  4. DOption (d)

    60

  5. EOption (e)

    85

View answer & explanation

Correct answer

Answer: (c)C.

80

Why this answer is correct

Calculation

Electric scooters in D:

40% of 200 = 80

RRB Clerk Prelims Memory Based Paper (Held On: 06 Dec 2025 Shift 1) (Previous Year Paper)·Numerical Ability
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Question 294

IBPS RRB Office Assistant (Clerk) 2025• Numerical Ability• Numerical Ability

The table shows number of car and scooter sold in five different showrooms [A, B, C, D and E].

ShowroomNumber of cars soldNumber of scooters sold
A180120
B160250
C200240
D150200
E220180

Find the average number of scooters sold in all showroom together?

  1. AOption (a)

    147

  2. BOption (b)

    162

  3. COption (c)

    168

  4. DOption (d)

    158

  5. EOption (e)

    198

View answer & explanation

Correct answer

Answer: (e)E.

198

Why this answer is correct

Calculation

Average number of scooters in all showrooms:

Total scooters = 120 + 250 + 240 + 200 + 180 = 990

Average = 990 ÷ 5 = 198

RRB Clerk Prelims Memory Based Paper (Held On: 06 Dec 2025 Shift 1) (Previous Year Paper)·Numerical Ability
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Question 295

IBPS RRB Office Assistant (Clerk) 2025• Numerical Ability• Numerical Ability

The table shows number of car and scooter sold in five different showrooms [A, B, C, D and E].

ShowroomNumber of cars soldNumber of scooters sold
A180120
B160250
C200240
D150200
E220180

Average number cars sold in showroom E and F is 195. Find the number of cars sold in showroom F?

  1. AOption (a)

    210

  2. BOption (b)

    170

  3. COption (c)

    220

  4. DOption (d)

    320

  5. EOption (e)

    190

View answer & explanation

Correct answer

Answer: (b)B.

170

Why this answer is correct

Calculation

Cars in showroom F:

(220 + F) ÷ 2 = 195

220 + F = 390 → F = 170

RRB Clerk Prelims Memory Based Paper (Held On: 06 Dec 2025 Shift 1) (Previous Year Paper)·Numerical Ability
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Question 296

IBPS RRB Office Assistant (Clerk) 2025• Numerical Ability• Numerical Ability

The table shows number of car and scooter sold in five different showrooms [A, B, C, D and E].

ShowroomNumber of cars soldNumber of scooters sold
A180120
B160250
C200240
D150200
E220180

Find difference between number of vehicles [ car  + scooter] sold in shop B and E?

  1. AOption (a)

    20

  2. BOption (b)

    37

  3. COption (c)

    10

  4. DOption (d)

    16

  5. EOption (e)

    18

View answer & explanation

Correct answer

Answer: (c)C.

10

Why this answer is correct

Calculation

B total = 160 + 250 = 410

E total = 220 + 180 = 400

Difference = 10

RRB Clerk Prelims Memory Based Paper (Held On: 06 Dec 2025 Shift 1) (Previous Year Paper)·Numerical Ability
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Question 297

IBPS RRB Office Assistant (Clerk) 2025• Numerical Ability• Numerical Ability

The table shows number of car and scooter sold in five different showrooms [A, B, C, D and E].

ShowroomNumber of cars soldNumber of scooters sold
A180120
B160250
C200240
D150200
E220180

Number of scooters sold in showroom in D is 5x. Find the value of x?

  1. AOption (a)

    12

  2. BOption (b)

    40

  3. COption (c)

    32

  4. DOption (d)

    19

  5. EOption (e)

    18

View answer & explanation

Correct answer

Answer: (b)B.

40

Why this answer is correct

Calculation

Scooters in D = 5x:

200 = 5x → x = 40

RRB Clerk Prelims Memory Based Paper (Held On: 06 Dec 2025 Shift 1) (Previous Year Paper)·Numerical Ability
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Question 298

IBPS RRB Office Assistant (Clerk) 2025• Numerical Ability• Numerical Ability

Profit percentage is 40% and marked up percentage is 50%. If discount is Rs. 40 then find cost price?

  1. AOption (a)

    620

  2. BOption (b)

    400

  3. COption (c)

    480

  4. DOption (d)

    320

  5. EOption (e)

    440

View answer & explanation

Correct answer

Answer: (b)B.

400

Why this answer is correct

Given:

Profit % = 40%

Marked up % = 50%

Discount = 40

Calculations:

Let CP = x

Marked Price = x + 50% of x = 1.5x

Selling Price = CP + 40% of CP = 1.4x

Discount = MP − SP

⇒ 1.5x − 1.4x = 40

⇒ 0.1x = 40

⇒ x = 40 ÷ 0.1

⇒ x = 400

∴ Cost Price = Rs. 400.

RRB Clerk Prelims Memory Based Paper (Held On: 06 Dec 2025 Shift 1) (Previous Year Paper)·Numerical Ability
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Question 299

IBPS RRB Office Assistant (Clerk) 2025• Numerical Ability• Numerical Ability

Circumference of circle is 176 m. Find the area of circle?

  1. AOption (a)

    2874

  2. BOption (b)

    2254

  3. COption (c)

    2642

  4. DOption (d)

    2464

  5. EOption (e)

    2264

View answer & explanation

Correct answer

Answer: (d)D.

2464

Why this answer is correct

Given:

Circumference (C) = 176 m

Formula used:

C = 2πr

Area = πr2

Calculations:

⇒ 176 = 2 × 22/7 × r

⇒ r = 176 × 7 ÷ (44)

⇒ r = 28 m

Area = 22/7 × 28 × 28

⇒ Area = 22/7 × 784

⇒ Area = 22 × 112

⇒ Area = 2464 m²

∴ Area of the circle = 2464 m².

RRB Clerk Prelims Memory Based Paper (Held On: 06 Dec 2025 Shift 1) (Previous Year Paper)·Numerical Ability
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Question 300

IBPS RRB Office Assistant (Clerk) 2025• Numerical Ability• Numerical Ability

Ratio present age of A and B is 4:3. 6 years ago ratio of A and B is 17:12. Find the age of A after 6 years?

  1. AOption (a)

    55

  2. BOption (b)

    46

  3. COption (c)

    44

  4. DOption (d)

    38

  5. EOption (e)

    32

View answer & explanation

Correct answer

Answer: (b)B.

46

Why this answer is correct

Given:

Present age ratio A : B = 4 : 3

6 years ago ratio A : B = 17 : 12

Calculations

Age relation: (A−6)/(B−6) = 17/12

Present ages: A = 17k + 6, B = 12k + 6

⇒ (17k + 6) : (12k + 6) = 4 : 3

⇒ 3(17k + 6) = 4(12k + 6)

⇒ 51k + 18 = 48k + 24

⇒ 3k = 6

⇒ k = 2

⇒ A (present) = 17×2 + 6 = 40

Age of A after 6 years = 40 + 6 = 46

∴ Age of A after 6 years = 46 years.

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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.