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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 841–860 of 1935Page 43 of 97
IBPS PO Prelims Memory Based Paper (Held On: 30 September 2023 Shift 2) (Previous Year Paper)·Quantitative Aptitude
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Question 841

IBPS RRB Office Assistant (Clerk) 2023• Quantitative Aptitude• Quantitative Aptitude

Directions: The given caselet gives the information about the number of managers (Male + Female)  and number of clerks (Male + Female) working in the three different companies X, Y and Z.

The total  number of managers working in company X is 90 and the number of female clerks working in Company X is 10 less than the total number of managers working in company X. Number of male clerks to female clerks in company X are in the ratio 9: 8. Number of male managers working in company Z is 10 more than the female manager in the same company. Total number of managers in company Z is the same as the number of female clerks in company X. Number of male clerks in company Z is 10 more than the number of male clerks in company X. Total clerks in company Z is 165. Average number of male and female managers in company Z is the same as the number of female clerks in company Y which is 30 less than that of males in the same company. Number of male managers to female managers in company Y are in the ratio 4: 5. Difference between the number of male and female managers in company Y is 15. Number of male managers to female managers in company X is 5: 4.

Find the ratio between the number of male managers in Company X and Y to the number of male clerks in company X and Y.

  1. AOption (a)

    13: 17

  2. BOption (b)

    11: 16

  3. COption (c)

    11: 20

  4. DOption (d)

    19: 21

  5. EOption (e)

    19: 25

View answer & explanation

Correct answer

Answer: (b)B.

11: 16

Why this answer is correct

General Solution:

 

Total number of managers (Male + Female) in company X = 90

Number of male managers in company X= 90/9 ×  5 = 50

Number of female managers in company X = 90 - 50 = 40

Number of female clerks working in Company X is 10 less than the total number of managers working in company X 

Number of female clerks working in Company X = (90 - 10) = 80

Number of male clerks working in company X = 80/8 ×  9 = 90

Number of male managers working in company Z = (x + 10)

Number of female managers working in company Z = x

Total number of managers in company Z is the same as the number of female clerks in company X

Number of managers in company Z = 80

x + x + 10 = 80

2x = 70

x = 35

Number of male managers in company Z = (35 + 10) = 45

Number of female managers in company Z = 35

Number of male clerks in company Z is 10 more than the number of male clerks in company X

Number of male clerks in company Z = 90 + 10 = 100

Number of female clerks in company Z = 165 - 100 = 65

Average number of male and female managers in company Z is the same as the number of female clerks in company Y which is 30 less than that of males in the same company.

Number of female clerks in company Y = (45 + 35)/2 = 80/2 = 40

Number of male clerks in company Y = (40 + 30) = 70

Number of male managers to female managers in company Y are in the ratio 4: 5

Number of male managers in company Y = 4 ×  15 = 60

Number of female managers in company Y = 5 ×  15 = 75

 

CompaniesNumber of male managersNumber of female managersNumber of male clerksNumber of female clerks
X50409080
Y60757040
Z453510065

 

Solution:

Number of male managers in company X and Y = (50 + 60) = 110

Number of male clerks in company  and Y = (90 + 70) = 160

Required percentage = 11: 16

IBPS PO Prelims Memory Based Paper (Held On: 30 September 2023 Shift 2) (Previous Year Paper)·Quantitative Aptitude
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Question 842

IBPS RRB Office Assistant (Clerk) 2023• Quantitative Aptitude• Quantitative Aptitude

At present, the ratio of the age of Hrick and Oindrila is x ∶ y. If Hirck's age is increased by 4 years and Oindrila's age is increased by 2 years, then the new ratio of their age will be 2 ∶ 3. If the sum of their present age is 44 years, find the original ratio of their age.

  1. AOption (a)

    7 ∶ 4

  2. BOption (b)

    4 ∶ 7

  3. COption (c)

    4 ∶ 5

  4. DOption (d)

    5 ∶ 4

  5. EOption (e)

    None of these

View answer & explanation

Correct answer

Answer: (b)B.

4 ∶ 7

Why this answer is correct

Shortcut Trick

Sum of ages after increases = 44 + 4 + 2 = 50 years.

New ratio is 2 ∶ 3 → Total parts = 5.

5 units = 50 ⇒ 1 unit = 10.

New ages: Hrick = 2 × 10 = 20, Oindrila = 3 × 10 = 30.

Present ages: Hrick = 20 − 4 = 16, Oindrila = 30 − 2 = 28.

Original ratio = 16 ∶ 28 = 4 ∶ 7.

∴ The correct answer is 4 ∶ 7.

Alternate Method

Given: Sum of Present Ages = 44 years. New Ratio = 2 ∶ 3 after adding 4 and 2 years respectively.

Calculations:

⇒ Let Hrick's present age be H and Oindrila's be O.

⇒ H + O = 44 — (Equation 1)

⇒ (H + 4) ÷ (O + 2) = 2 ÷ 3

⇒ 3(H + 4) = 2(O + 2)

⇒ 3H + 12 = 2O + 4 ⇒ 3H − 2O = −8 — (Equation 2)

⇒ From (1), O = 44 − H. Substitute in (2):

⇒ 3H − 2(44 − H) = −8

⇒ 3H − 88 + 2H = −8 ⇒ 5H = 80 ⇒ H = 16

⇒ O = 44 − 16 = 28

⇒ Ratio x ∶ y = 16 ∶ 28 = 4 ∶ 7

∴ The correct answer is 4 ∶ 7.

Additional Information

Ratio and Sum Relation

If the sum of two quantities is S and their ratio is a ∶ b, then the quantities are [a ÷ (a+b)] × S and [b ÷ (a+b)] × S.

Age Problems Shift

When ages are increased or decreased, the sum of ages changes by the total number of years added to or subtracted from each individual.

IBPS PO Prelims Memory Based Paper (Held On: 30 September 2023 Shift 2) (Previous Year Paper)·Quantitative Aptitude
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Question 843

IBPS RRB Office Assistant (Clerk) 2023• Quantitative Aptitude• Quantitative Aptitude

A boat starts travelling from point P, travels to point Q then returns to point P. The boat takes 12 hours to complete the journey. The speed of the stream is 5 km/hour and the speed of the boat in still water is 10 km/hour. What is the distance between P and Q?

  1. AOption (a)

    45

  2. BOption (b)

    25

  3. COption (c)

    35

  4. DOption (d)

    55

  5. EOption (e)

    60

View answer & explanation

Correct answer

Answer: (a)A.

45

Why this answer is correct

Shortcut Trick

Downstream speed (u) = 10 + 5 = 15 km/hr

Upstream speed (v) = 10 − 5 = 5 km/hr

Distance (D) = [Total Time × (u × v)] ÷ (u + v)

⇒ D = [12 × (15 × 5)] ÷ (15 + 5) = (12 × 75) ÷ 20 = 45 km

∴ The correct answer is 45 km.

Alternate Method

Given:

Speed of boat in still water (x) = 10 km/hr

Speed of stream (y) = 5 km/hr

Total time taken = 12 hours

Formula Used:

Time = Distance ÷ Speed

Downstream Speed = x + y | Upstream Speed = x − y

Calculations:

⇒ Downstream speed = 10 + 5 = 15 km/hr

⇒ Upstream speed = 10 − 5 = 5 km/hr

⇒ Total Time = (Distance ÷ Downstream Speed) + (Distance ÷ Upstream Speed)

⇒ 12 = (D ÷ 15) + (D ÷ 5)

⇒ 12 = (D + 3D) ÷ 15

⇒ 12 = 4D ÷ 15

⇒ 4D = 12 × 15

⇒ D = (12 × 15) ÷ 4

⇒ D = 3 × 15 = 45 km

∴ The correct answer is 45 km.

Additional Information

Relative Speed in Water

When a boat moves with the flow (downstream), speeds are added: U = B + S. Against the flow (upstream), speeds are subtracted: V = B − S.

Average Speed for Round Trip

For a round trip between two points, Average Speed = (2 × U × V) ÷ (U + V). Total Distance = Average Speed × Total Time ÷ 2.

Speed Conversion

To convert km/hr to m/s, multiply by 5/18. To convert m/s to km/hr, multiply by 18/5.

IBPS PO Prelims Memory Based Paper (Held On: 30 September 2023 Shift 2) (Previous Year Paper)·Quantitative Aptitude
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Question 844

IBPS RRB Office Assistant (Clerk) 2023• Quantitative Aptitude• Quantitative Aptitude

A shopkeeper has two items X and Y. Marked price of item Y is 40% more than the marked price of item X. The shopkeeper sold item X at 30% discount and item Y at 15% discount. On this transaction he made 20% loss on item X and 12% profit on item Y. If the total loss of the shopkeeper was Rs. 228, then find the marked price of the item Y?

  1. AOption (a)

    Rs. 6520

  2. BOption (b)

    Rs. 6410

  3. COption (c)

    Rs. 6720

  4. DOption (d)

    Rs. 6820

  5. EOption (e)

    Rs. 6020

View answer & explanation

Correct answer

Answer: (c)C.

Rs. 6720

Why this answer is correct

Shortcut Trick

Let MP of X = 100u, then MP of Y = 140u.

SP of X = 100u × 0.7 = 70u | CP of X = 70u ÷ 0.8 = 87.5u | Loss X = 17.5u.

SP of Y = 140u × 0.85 = 119u | CP of Y = 119u ÷ 1.12 = 106.25u | Profit Y = 12.75u.

Net loss = 17.5u − 12.75u = 4.75u. Given 4.75u = Rs. 228. 1u = 228 ÷ 4.75 = 48. MP of Y = 140 × 48 = Rs. 6720. ∴ The correct answer is Rs. 6720.

Alternate Method

Given: MPY = 1.4 × MPX, DiscountX = 30%, DiscountY = 15%, Loss%X = 20%, Profit%Y = 12%, Total Loss = Rs. 228. Formulas: SP = MP × (100 − D)% | CP = SP × 100 ÷ (100 ± P/L)% | Profit/Loss = |CP − SP|

⇒ Let Marked Price of X = 100x and Y = 140x.

⇒ Selling Price X = 70x, Selling Price Y = 140x × 0.85 = 119x.

⇒ Cost Price X = 70x ÷ 0.80 = 87.5x. Cost Price Y = 119x ÷ 1.12 = 106.25x.

⇒ Loss on X = 87.5x − 70x = 17.5x. Profit on Y = 119x − 106.25x = 12.75x.

⇒ Total Loss = 17.5x − 12.75x = 4.75x = 228 ⇒ x = 48.

⇒ Marked Price of Y = 140 × 48 = 6720.

∴ The correct answer is Rs. 6720.

Additional Information

Relationship between CP and MP

The ratio of CP to MP can be expressed as CP/MP = (100 − D%)/(100 ± P/L%).

Mark-up Percentage

Mark-up% = [(MP − CP) / CP] × 100. It represents how much higher the MP is compared to the CP.

IBPS PO Prelims Memory Based Paper (Held On: 30 September 2023 Shift 2) (Previous Year Paper)·Quantitative Aptitude
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Question 845

IBPS RRB Office Assistant (Clerk) 2023• Quantitative Aptitude• Quantitative Aptitude

Time taken by P to finish a piece of work is twice the time taken Q and thrice the time taken by R. If all three of them work together, it takes them 9 days to complete the entire work. How much time will 'R' need to finish the work alone?

  1. AOption (a)

    18 days

  2. BOption (b)

    19 days

  3. COption (c)

    23 days

  4. DOption (d)

    21 Days

  5. EOption (e)

    15 Days

View answer & explanation

Correct answer

Answer: (a)A.

18 days

Why this answer is correct

Shortcut Trick

Ratio of Time taken by P : Q : R = 6 : 3 : 2 (Taking LCM of 1, 2, 3 as 6).

Ratio of Efficiency (Inverse of Time) = 1/6 : 1/3 : 1/2 ⇒ 1 : 2 : 3.

Total Work = Total Efficiency × Total Days = (1 + 2 + 3) × 9 = 54 units.

Time for R = Total Work ÷ Efficiency of R = 54 ÷ 3 = 18 days.

∴ The correct answer is 18 days.

Alternate Method

Given: Time(P) = 2 × Time(Q) = 3 × Time(R). Combined time = 9 days.

Formula Used: Efficiency ∝ 1/Time; Total Work = Combined Efficiency × Time.

PersonRelative TimeTotal WorkEfficiency
P6x18x3
Q3x6
R2x9

⇒ Let the time taken by P be 6x, Q be 3x, and R be 2x.

⇒ One day work of P, Q, and R: 1/6x + 1/3x + 1/2x = 1/9.

⇒ (1 + 2 + 3) / 6x = 1/9.

⇒ 6 / 6x = 1/9 ⇒ 1/x = 1/9 ⇒ x = 9.

⇒ Time taken by R alone = 2x = 2 × 9 = 18 days.

∴ The correct answer is 18 days.

Additional Information

Efficiency and Time Relation

Efficiency is inversely proportional to the time taken. If the ratio of time is a:b, the ratio of efficiency is b:a.

Work and Wages

Wages are distributed in the ratio of efficiency or the ratio of work done by each person.

Combined Work Formula

If A takes 'a' days and B takes 'b' days, together they take (a × b) / (a + b) days to complete the work.

RRB Clerk Mains Memory Based Paper (Held On: 16 September 2023) (Previous Year Paper)·Numerical Ability
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Question 846

IBPS RRB Office Assistant (Clerk) 2023• Numerical Ability• Numerical Ability

Directions: The following table shows the total number of tickets (Business + Economy) booked, the Percentage of Economy tickets booked and number of female economy tickets booked in three different airlines A, B and C.

 

Name of airlinesTotal number of tickets booked (Business + Economy)Percentage of Economy tickets bookedNumber of female Economy tickets
A48033(1/3)%50
B60075%120
C80062.5%100

 Find the ratio between the number of economy tickets booked in A and C to the number of business tickets booked in B and C.

  1. AOption (a)

    23: 12

  2. BOption (b)

    25: 14

  3. COption (c)

    22: 15

  4. DOption (d)

    23: 14

  5. EOption (e)

    21:13

View answer & explanation

Correct answer

Answer: (c)C.

22: 15

Why this answer is correct

General solution:

Airline A:

Total number of tickets (Business + Economy) booked = 480

Number of Economy tickets booked = 480 × (1/3) = 160

Number of business tickets booked = (480 - 160) = 320

Number of female Economy tickets booked = 50

Number of male Economy tickets booked = 160 - 50 = 110

Airline B:

Total number of tickets (Business + Economy) booked = 600

Number of Economy tickets booked = 600 × (3/4) = 450

Number of business tickets booked = (600 - 450) = 150

Number of female Economy tickets booked = 120

Number of male Economy tickets booked = 450 - 120 = 330

Airline C:

Total number of tickets (Business + Economy) booked = 800

Number of Economy tickets booked = 800 ×  (5/8) = 500

Number of business tickets booked = (800 - 500) = 300

Number of female Economy tickets booked = 100

Number of male Economy tickets booked = 500 - 100 = 400

Solution:

Number of economy tickets booked in A = 160

Number of economy tickets booked in C = 500

Number of business tickets booked in B = 150

Number of business tickets booked in C = 300

Required ratio = (160 + 500): (150 + 300)

= 660: 450 = 22: 15

RRB Clerk Mains Memory Based Paper (Held On: 16 September 2023) (Previous Year Paper)·Numerical Ability
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Question 847

IBPS RRB Office Assistant (Clerk) 2023• Numerical Ability• Numerical Ability

Directions: The following table shows the total number of tickets (Business + Economy) booked, the Percentage of Economy tickets booked and number of female economy tickets booked in three different airlines A, B and C.

 

Name of airlinesTotal number of tickets booked (Business + Economy)Percentage of Economy tickets bookedNumber of female Economy tickets
A48033(1/3)%50
B60075%120
C80062.5%100

Number of tickets booked in airline A is 60% of the total tickets and remaining tickets are left vacant. If the number of vacant business tickets is 120 then find the number of vacant economy tickets in airline A.

  1. AOption (a)

    240

  2. BOption (b)

    120

  3. COption (c)

    180

  4. DOption (d)

    200

  5. EOption (e)

    220

View answer & explanation

Correct answer

Answer: (d)D.

200

Why this answer is correct

General solution:

Airline A:

Total number of tickets (Business + Economy) booked = 480

Number of Economy tickets booked = 480 × (1/3) = 160

Number of business tickets booked = (480 - 160) = 320

Number of female Economy tickets booked = 50

Number of male Economy tickets booked = 160 - 50 = 110

Airline B:

Total number of tickets (Business + Economy) booked = 600

Number of Economy tickets booked = 600 × (3/4) = 450

Number of business tickets booked = (600 - 450) = 150

Number of female Economy tickets booked = 120

Number of male Economy tickets booked = 450 - 120 = 330

Airline C:

Total number of tickets (Business + Economy) booked = 800

Number of Economy tickets booked = 800 ×  (5/8) = 500

Number of business tickets booked = (800 - 500) = 300

Number of female Economy tickets booked = 100

Number of male Economy tickets booked = 300 - 100 = 200

Solution:

Number of tickets booked in airline A = 480

Total number of tickets present in the airline A = 480/60 × 100 = 800

Total number of vacant tickets = (800 - 480) = 320

Number of vacant business  tickets = 120

Number of vacant economy tickets = (320 - 120) = 200

RRB Clerk Mains Memory Based Paper (Held On: 16 September 2023) (Previous Year Paper)·Numerical Ability
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Question 848

IBPS RRB Office Assistant (Clerk) 2023• Numerical Ability• Numerical Ability

Directions: The following table shows the total number of tickets (Business + Economy) booked, the Percentage of Economy tickets booked and number of female economy tickets booked in three different airlines A, B and C.

 

Name of airlinesTotal number of tickets booked (Business + Economy)Percentage of Economy tickets bookedNumber of female Economy tickets
A48033(1/3)%50
B60075%120
C80062.5%100

 If the ticket rates for the airlines A economy and business are Rs. 500 and Rs. 1000 respectively. Find the total revenue generated by booking all the given tickets.

  1. AOption (a)

    Rs. 138000

  2. BOption (b)

    Rs. 546000

  3. COption (c)

    Rs. 400000

  4. DOption (d)

    Rs. 324000

  5. EOption (e)

    Rs. 245000

View answer & explanation

Correct answer

Answer: (c)C.

Rs. 400000

Why this answer is correct

General solution:

Airline A:

Total number of tickets (Business + Economy) booked = 480

Number of Economy tickets booked = 480 × (1/3) = 160

Number of business tickets booked = (480 - 160) = 320

Number of female Economy tickets booked = 50

Number of male Economy tickets booked = 160 - 50 = 110

Airline B:

Total number of tickets (Business + Economy) booked = 600

Number of Economy tickets booked = 600 × (3/4) = 450

Number of business tickets booked = (600 - 450) = 150

Number of female Economy tickets booked = 120

Number of male Economy tickets booked = 450 - 120 = 330

Airline C:

Total number of tickets (Business + Economy) booked = 800

Number of Economy tickets booked = 800 ×  (5/8) = 500

Number of business tickets booked = (800 - 500) = 300

Number of female Economy tickets booked = 100

Number of male Economy tickets booked = 300 - 100 = 200

Solution:

Economy tickets for airline A = 160

Business tickets for airline A = 320 

Total revenue generated = (160 × 500 + 320 × 1000) = (80000 + 320000) = 400000

RRB Clerk Mains Memory Based Paper (Held On: 16 September 2023) (Previous Year Paper)·Numerical Ability
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Question 849

IBPS RRB Office Assistant (Clerk) 2023• Numerical Ability• Numerical Ability

Directions: The following table shows the total number of tickets (Business + Economy) booked, the Percentage of Economy tickets booked and number of female economy tickets booked in three different airlines A, B and C.

 

Name of airlinesTotal number of tickets booked (Business + Economy)Percentage of Economy tickets bookedNumber of female Economy tickets
A48033(1/3)%50
B60075%120
C80062.5%100

Number of tickets booked by airline D is 25% more than the number of tickets booked by airline C and the number of economy tickets booked by airline D is 60% of the total tickets booked. Find the difference between the number of business tickets booked by company D and company B.

  1. AOption (a)

    180

  2. BOption (b)

    150

  3. COption (c)

    250

  4. DOption (d)

    140

  5. EOption (e)

    160

View answer & explanation

Correct answer

Answer: (c)C.

250

Why this answer is correct

General solution:

Airline A:

Total number of tickets (Business + Economy) booked = 480

Number of Economy tickets booked = 480 × (1/3) = 160

Number of business tickets booked = (480 - 160) = 320

Number of female Economy tickets booked = 50

Number of male Economy tickets booked = 160 - 50 = 110

Airline B:

Total number of tickets (Business + Economy) booked = 600

Number of Economy tickets booked = 600 × (3/4) = 450

Number of business tickets booked = (600 - 450) = 150

Number of female Economy tickets booked = 120

Number of male Economy tickets booked = 450 - 120 = 330

Airline C:

Total number of tickets (Business + Economy) booked = 800

Number of Economy tickets booked = 800 ×  (5/8) = 500

Number of business tickets booked = (800 - 500) = 300

Number of female Economy tickets booked = 100

Number of male Economy tickets booked = 400 - 100 = 300

Solution:

Number of tickets booked by airline C = 800

Number of tickets booked by airline D = 800 ×  125/100 = 1000

Number of economy tickets booked by airline D = 1000 × (60/100) = 600

Number of business tickets booked by airline D = (1000 - 600) = 400

Number of business tickets booked by airline B = 150

Required difference = (400 - 150) = 250

RRB Clerk Mains Memory Based Paper (Held On: 16 September 2023) (Previous Year Paper)·Numerical Ability
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Question 850

IBPS RRB Office Assistant (Clerk) 2023• Numerical Ability• Numerical Ability

Directions: The following table shows the total number of tickets (Business + Economy) booked, the Percentage of Economy tickets booked and number of female economy tickets booked in three different airlines A, B and C.

 

Name of airlinesTotal number of tickets booked (Business + Economy)Percentage of Economy tickets bookedNumber of female Economy tickets
A48033(1/3)%50
B60075%120
C80062.5%100

If the number of business tickets booked by male in airline A and airline B is 100 and 50 respectively. Find the difference between the total number of tickets booked by the females in airline A and airline B.

  1. AOption (a)

    80

  2. BOption (b)

    50

  3. COption (c)

    120

  4. DOption (d)

    60

  5. EOption (e)

    40

View answer & explanation

Correct answer

Answer: (b)B.

50

Why this answer is correct

General solution:

Airline A:

Total number of tickets (Business + Economy) booked = 480

Number of Economy tickets booked = 480 × (1/3) = 160

Number of business tickets booked = (480 - 160) = 320

Number of female Economy tickets booked = 50

Number of male Economy tickets booked = 160 - 50 = 110

Airline B:

Total number of tickets (Business + Economy) booked = 600

Number of Economy tickets booked = 600 × (3/4) = 450

Number of business tickets booked = (600 - 450) = 150

Number of female Economy tickets booked = 120

Number of male Economy tickets booked = 450 - 120 = 330

Airline C:

Total number of tickets (Business + Economy) booked = 800

Number of Economy tickets booked = 800 ×  (5/8) = 500

Number of business tickets booked = (800 - 500) = 300

Number of female Economy tickets booked = 100

Number of male Economy tickets booked = 500 - 100 = 400

Solution:

Number of business tickets booked by male in airline A = 100

Number of business tickets booked by male in airline B = 50

Number of business tickets booked by female in airline A = 320 - 100  = 220

Number of business tickets booked by females in airline B = 150 - 50 = 100

Required difference = (220 + 50) - (120 + 100) = 50

RRB Clerk Mains Memory Based Paper (Held On: 16 September 2023) (Previous Year Paper)·Numerical Ability
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Question 851

IBPS RRB Office Assistant (Clerk) 2023• Numerical Ability• Numerical Ability

Find the missing term in the given series.

0, ?, 91, 216, 432, 775

  1. AOption (a)

    30

  2. BOption (b)

    27

  3. COption (c)

    28

  4. DOption (d)

    36

  5. EOption (e)

    None of these

View answer & explanation

Correct answer

Answer: (b)B.

27

Why this answer is correct

Solution:

0

0 + 33 = 27

27 + 43 = 91

91 + 53 = 216

216 + 63 = 432

432 + 73 = 775

Thus the missing number is 27

RRB Clerk Mains Memory Based Paper (Held On: 16 September 2023) (Previous Year Paper)·Numerical Ability
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Question 852

IBPS RRB Office Assistant (Clerk) 2023• Numerical Ability• Numerical Ability

Find the missing term in the given series.

85, 115, 75, 125, 65, 135, ?

  1. AOption (a)

    90

  2. BOption (b)

    75

  3. COption (c)

    55

  4. DOption (d)

    115

  5. EOption (e)

    None of these

View answer & explanation

Correct answer

Answer: (c)C.

55

Why this answer is correct

Solution:

85

 

85 + 30 = 115

 

115 - 40 = 75

 

75 + 50 = 125

 

125 - 60 = 65

 

65 + 70 = 135

 

135 - 80 = 55

 

Thus the missing number is 55

RRB Clerk Mains Memory Based Paper (Held On: 16 September 2023) (Previous Year Paper)·Numerical Ability
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Question 853

IBPS RRB Office Assistant (Clerk) 2023• Numerical Ability• Numerical Ability

Find the missing term in the given series.

734, 613, 469, 300, 104, ?

  1. AOption (a)

    -121

  2. BOption (b)

    -123

  3. COption (c)

    -223

  4. DOption (d)

    -187

  5. EOption (e)

    None of these

View answer & explanation

Correct answer

Answer: (a)A.

-121

Why this answer is correct

Solution:

734  - 112 = 613

613 - 122 = 469

469 - 132 = 300

300 - 142 = 104

104 - 152 = -121

Thus the missing number is -121

RRB Clerk Mains Memory Based Paper (Held On: 16 September 2023) (Previous Year Paper)·Numerical Ability
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Question 854

IBPS RRB Office Assistant (Clerk) 2023• Numerical Ability• Numerical Ability

Find the missing term in the given series.

?, 280 , 1680 , 8400 , 33600, 100800

  1. AOption (a)

    75

  2. BOption (b)

    40

  3. COption (c)

    70

  4. DOption (d)

    60

  5. EOption (e)

    None of these

View answer & explanation

Correct answer

Answer: (b)B.

40

Why this answer is correct

Solution:

40

(40 × 7) = 280

(280 × 6) = 1680

(1680 × 5) = 8400

(8400 × 4) = 33600

(33600 × 3) = 100800

Thus the missing number is 40

RRB Clerk Mains Memory Based Paper (Held On: 16 September 2023) (Previous Year Paper)·Numerical Ability
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Question 855

IBPS RRB Office Assistant (Clerk) 2023• Numerical Ability• Numerical Ability

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

51, 106, 183, 282, 403, (?)

  1. AOption (a)

    546

  2. BOption (b)

    528

  3. COption (c)

    525

  4. DOption (d)

    527

  5. EOption (e)

    None of these

View answer & explanation

Correct answer

Answer: (a)A.

546

Why this answer is correct

51 + (11 × 5) = 106

106 + (11 × 7) = 183

183 + (11 × 9) = 282

282 + (11 × 11) = 403

403 + (11 × 13) = 546

RRB Clerk Mains Memory Based Paper (Held On: 16 September 2023) (Previous Year Paper)·Numerical Ability
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Question 856

IBPS RRB Office Assistant (Clerk) 2023• Numerical Ability• Numerical Ability

The following caselet shows the number of hatchback cars and number of sedan cars sold by the three different manufacturers G, H, and K.

Total number of hatchback cars sold by G is 33.33% of the total number of sedan cars sold by H. Total hatchback cars sold by H is 62 more than total sedan cars sold by H. The ratio of total hatchback cars sold by H to K is 2: 1 and the total number of hatchback cars sold by all the three manufacturers is 247. The total number of sedan cars sold by all the three manufacturers is 231.

If the ratio between the number of sedan cars sold by G to K are in the ratio 2: 1 and. Find the difference between the 50% of the sedan cars sold by G and the 1/7 th of the sedan cars sold by K.

  1. AOption (a)

    46

  2. BOption (b)

    38

  3. COption (c)

    42

  4. DOption (d)

    54

  5. EOption (e)

    32

View answer & explanation

Correct answer

Answer: (c)C.

42

Why this answer is correct

Solution:

Total number of sedan cars sold by H = 3x

Total number of hatchback cars sold by G = x

Number of hatchback cars sold by H = (3x + 62)

Ratio of total hatchback cars sold by H to K = 2: 1

Number of hatchback cars sold by K = (3x + 62)/2 ×  1 = (3x + 62)/2  

Total hatchback cars sold by all the manufacturers = 247

Total number of sedan cars sold by all the three manufacturers is 231.

Total number of hatchback cars in all the manufacturers G, H and K = x + (3x + 62) + (3x + 62)/2 = 247

x + 3x + 1.5x + 93 = 247

5.5x = 154

x  = 28

Number of sedan cars sold by H = 3 ×  28 = 84

Number of hatchback cars sold by G = 28

Number of hatchback cars sold by H = (3 ×  28 + 62) = 146

Number of hatchback cars sold by K = (3 ×  28 + 62)/2 = 73

Solution:

Total number of sedan cars sold by G and K = (231 - 84) = 147

Number of sedan cars sold by G = 147/3 × 2 = 98

Number of sedan cars sold by K = (147 - 98) = 49

50% of the sedan cars sold by G = 98/2 = 49

1/7 of the sedan cars sold by K = 49/7 = 7

Required difference = (49 - 7) = 42

RRB Clerk Mains Memory Based Paper (Held On: 16 September 2023) (Previous Year Paper)·Numerical Ability
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Question 857

IBPS RRB Office Assistant (Clerk) 2023• Numerical Ability• Numerical Ability

The following caselet shows the number of hatchback cars and number of sedan cars sold by the three different manufacturers G, H, and K.

Total number of hatchback cars sold by G is 33.33% of the total number of sedan cars sold by H. Total hatchback cars sold by H is 62 more than total sedan cars sold by H. The ratio of total hatchback cars sold by H to K is 2: 1 and the total number of hatchback cars sold by all the three manufacturers is 247. The total number of sedan cars sold by all the three manufacturers is 231.

If the average number of hatchback cars sold by E and G together is 35 and total number of cars (hatchback and sedan) cars sold by E is 80, then find the total number of sedan cars sold by E.

  1. AOption (a)

    48

  2. BOption (b)

    38

  3. COption (c)

    43

  4. DOption (d)

    51

  5. EOption (e)

    54

View answer & explanation

Correct answer

Answer: (b)B.

38

Why this answer is correct

Solution:

Total number of sedan cars sold by H = 3x

Total number of hatchback cars sold by G = x

Number of hatchback cars sold by H = (3x + 62)

Ratio of total hatchback cars sold by H to K = 2: 1

Number of hatchback cars sold by K = (3x + 62)/2 ×  1 = (3x + 62)/2  

Total hatchback cars sold by all the manufacturers = 247

Total number of sedan cars sold by all the three manufacturers is 231.

Total number of hatchback cars in all the manufacturers G, H and K = x + (3x + 62) + (3x + 62)/2 = 247

x + 3x + 1.5x + 93 = 247

5.5x = 154

x  = 28

Number of sedan cars sold by H = 3 ×  28 = 84

Number of hatchback cars sold by G = 28

Number of hatchback cars sold by H = (3 ×  28 + 62) = 146

Number of hatchback cars sold by K = (3 ×  28 + 62)/2 = 73

Solution:

Average number of hatchback cars sold by E and G = 35

Number of hatchback cars sold by G = 28

Number of hatchback cars sold by E = (70 - 28) = 42

Total number of cars (hatchback and sedan) by E = 80

Number of sedan cars sold by E = (80 - 42) = 38

RRB Clerk Mains Memory Based Paper (Held On: 16 September 2023) (Previous Year Paper)·Numerical Ability
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Question 858

IBPS RRB Office Assistant (Clerk) 2023• Numerical Ability• Numerical Ability

The following caselet shows the number of hatchback cars and number of sedan cars sold by the three different manufacturers G, H, and K.

Total number of hatchback cars sold by G is 33.33% of the total number of sedan cars sold by H. Total hatchback cars sold by H is 62 more than total sedan cars sold by H. The ratio of total hatchback cars sold by H to K is 2: 1 and the total number of hatchback cars sold by all the three manufacturers is 247. The total number of sedan cars sold by all the three manufacturers is 231.

Sedan cars sold by H are 60% of the sedan cars sold by F and total number of cars sold by F is 196 then find the ratio between the number of hatchback cars sold by F to the number of hatchback cars sold by G.

  1. AOption (a)

    3: 4

  2. BOption (b)

    2: 5 

  3. COption (c)

    3:2

  4. DOption (d)

    2: 1 

  5. EOption (e)

    3: 2

View answer & explanation

Correct answer

Answer: (d)D.

2: 1 

Why this answer is correct

Solution:

Total number of sedan cars sold by H = 3x

Total number of hatchback cars sold by G = x

Number of hatchback cars sold by H = (3x + 62)

Ratio of total hatchback cars sold by H to K = 2: 1

Number of hatchback cars sold by K = (3x + 62)/2 ×  1 = (3x + 62)/2  

Total hatchback cars sold by all the manufacturers = 247

Total number of sedan cars sold by all the three manufacturers is 231.

Total number of hatchback cars in all the manufacturers G, H and K = x + (3x + 62) + (3x + 62)/2 = 247

x + 3x + 1.5x + 93 = 247

5.5x = 154

x  = 28

Number of sedan cars sold by H = 3 ×  28 = 84

Number of hatchback cars sold by G = 28

Number of hatchback cars sold by H = (3 ×  28 + 62) = 146

Number of hatchback cars sold by K = (3 ×  28 + 62)/2 = 73

Solution:

Number of sedan cars sold by H = 84

Number of sedan cars sold by F = 84/60 ×  100 = 140

Total number of cars sold by F = 196

Number of hatchback cars sold by F = (196 - 140) = 56

Required ratio = 56: 28 = 2: 1

RRB Clerk Mains Memory Based Paper (Held On: 16 September 2023) (Previous Year Paper)·Numerical Ability
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Question 859

IBPS RRB Office Assistant (Clerk) 2023• Numerical Ability• Numerical Ability

The following caselet shows the number of hatchback cars and number of sedan cars sold by the three different manufacturers G, H, and K.

Total number of hatchback cars sold by G is 33.33% of the total number of sedan cars sold by H. Total hatchback cars sold by H is 62 more than total sedan cars sold by H. The ratio of total hatchback cars sold by H to K is 2: 1 and the total number of hatchback cars sold by all the three manufacturers is 247. The total number of sedan cars sold by all the three manufacturers is 231.

Find the ratio of total number of hatchback cars sold by G to the total number of sedan cars sold by all the manufacturers respectively.

  1. AOption (a)

    7: 5

  2. BOption (b)

    5: 4

  3. COption (c)

    5: 7

  4. DOption (d)

    4: 33

  5. EOption (e)

    3: 7

View answer & explanation

Correct answer

Answer: (d)D.

4: 33

Why this answer is correct

Solution:

Total number of sedan cars sold by H = 3x

Total number of hatchback cars sold by G = x

Number of hatchback cars sold by H = (3x + 62)

Ratio of total hatchback cars sold by H to K = 2: 1

Number of hatchback cars sold by K = (3x + 62)/2 ×  1 = (3x + 62)/2  

Total hatchback cars sold by all the manufacturers = 247

Total number of sedan cars sold by all the three manufacturers is 231.

Total number of hatchback cars in all the manufacturers G, H and K = x + (3x + 62) + (3x + 62)/2 = 247

x + 3x + 1.5x + 93 = 247

5.5x = 154

x  = 28

Number of sedan cars sold by H = 3 ×  28 = 84

Number of hatchback cars sold by G = 28

Number of hatchback cars sold by H = (3 ×  28 + 62) = 146

Number of hatchback cars sold by K = (3 ×  28 + 62)/2 = 73

Solution:

Number of hatchback cars sold by G = 28

Total number of sedan cars sold by all manufacturers = 231

Required ratio = 28: 231 = 4: 33

RRB Clerk Mains Memory Based Paper (Held On: 16 September 2023) (Previous Year Paper)·Numerical Ability
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Question 860

IBPS RRB Office Assistant (Clerk) 2023• Numerical Ability• Numerical Ability

The following caselet shows the number of hatchback cars and number of sedan cars sold by the three different manufacturers G, H, and K.

Total number of hatchback cars sold by G is 33.33% of the total number of sedan cars sold by H. Total hatchback cars sold by H is 62 more than total sedan cars sold by H. The ratio of total hatchback cars sold by H to K is 2: 1 and the total number of hatchback cars sold by all the three manufacturers is 247. The total number of sedan cars sold by all the three manufacturers is 231.

If the number of sedan cars sold by the manufacturer H is increased by 2/7 and the number of hatchback cars sold by the manufacturer H is increased by 4, find the difference between the number of sedan cars and hatchback cars sold by H.

  1. AOption (a)

    41

  2. BOption (b)

    37

  3. COption (c)

    39

  4. DOption (d)

    42

  5. EOption (e)

    47

View answer & explanation

Correct answer

Answer: (d)D.

42

Why this answer is correct

Solution:

Total number of sedan cars sold by H = 3x

Total number of hatchback cars sold by G = x

Number of hatchback cars sold by H = (3x + 62)

Ratio of total hatchback cars sold by H to K = 2: 1

Number of hatchback cars sold by K = (3x + 62)/2 ×  1 = (3x + 62)/2  

Total hatchback cars sold by all the manufacturers = 247

Total number of sedan cars sold by all the three manufacturers is 231.

Total number of hatchback cars in all the manufacturers G, H and K = x + (3x + 62) + (3x + 62)/2 = 247

x + 3x + 1.5x + 93 = 247

5.5x = 154

x  = 28

Number of sedan cars sold by H = 3 ×  28 = 84

Number of hatchback cars sold by G = 28

Number of hatchback cars sold by H = (3 ×  28 + 62) = 146

Number of hatchback cars sold by K = (3 ×  28 + 62)/2 = 73

Solution:

Number of sedan cars sold by H at present = 84 + 84 ×  2/7 = 108

Number of hatchback cars sold by H at present = (146 + 4) = 150

Required difference = (150 - 108) = 42

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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.