IBPS RRB PO (Officer Scale-I) PrelimsPaper 2, booklet 9134324

Test booklet
प्रश्न पुस्तिका
Booklet No.
9134324
Series
D

IBPS RRB PO (Officer Scale-I) Prelims Paper 2

Questions
80
Maximum marks
80
Minutes allowed
45

Roll No. assigned when you start

Instructions निर्देश

  1. This booklet has 80 questions in 2 parts: A. Reasoning (40), B. Quantitative Aptitude (40).
  2. Each part has its own clock. When it runs out, that part closes and the next opens.
  3. Each question has 5 options and one right answer. A right answer earns 1 mark. A wrong answer costs 0.25. A question left blank scores nothing.
  4. Fill one bubble per question on the answer sheet. Unlike a real sheet, you can clear it and change your mind.

Scripting is off, so this page is a printed paper: answer on paper, then open each question’s working.

Part AReasoning

40 questions, 1 mark each, 0.25 off for a wrong answer

  1. Statements:
    (1) All coins are tables.
    (2) No tables are papers.
    (3) All papers are doors.

    Conclusions:
    (I) Some doors are coins.
    (II) No doors are tables.

    Take the statements to be true, however odd they sound. Which conclusion follows?
    Question 1
    Answer and working

    Answer D

    Conclusion I need not hold: doors and coins need not overlap at all. Conclusion II need not hold: doors and tables may overlap. So: Neither conclusion follows.

  2. If ‘+’ means ‘×’, ‘−’ means ‘+’, ‘×’ means ‘÷’, ‘÷’ means ‘−’, what is the value of 14 ÷ 4 + 11 × 4 − 3?
    Question 2
    Answer and working

    Answer E

    Replace the signs: 14 − 4 × 11 ÷ 4 + 3. Division and multiplication first, then addition and subtraction: 6.

  3. Priya walks 13 km towards the east. She turns left and walks 14 km. She turns left and walks 12 km. She turns left and walks 10 km. She turns left and walks 15 km. In which direction is she from the starting point?
    Question 3
    Answer and working

    Answer C

    Taking east and north as positive: she ends 16 km east and 4 km north of the start, which is to the North-east.

  4. In a certain code, PILLOW is written as KROOLD. How is SHIP written in that code?
    Question 4
    Answer and working

    Answer A

    From PILLOW → KROOLD: each letter is replaced by its opposite in the alphabet (A ↔ Z, B ↔ Y …). Applied to SHIP: HSRK.

  5. J is the brother of M. A is the wife of J. M is the mother of Q. How is A related to Q?
    Question 5
    Answer and working

    Answer C

    Follow the links out from Q: M is Q’s mother; J is M’s brother; A is J’s wife. So A is Q’s aunt.

  6. Statements:
    (1) Some kites are phones.
    (2) No roads are kites.
    (3) Some roads are flowers.

    Conclusions:
    (I) Some kites are not roads.
    (II) Some roads are not kites.

    Take the statements to be true, however odd they sound. Which conclusion follows?
    Question 6
    Answer and working

    Answer E

    Conclusion I holds in every diagram the statements allow. Conclusion II holds in every diagram the statements allow. So: Both conclusions follow.

  7. Which number replaces the question mark? 8, 15, 24, 35, ?, 63
    Question 7
    Answer and working

    Answer E

    The rule: the terms are 3², 4², 5² … minus 1. The missing term is 48.

  8. Statements:
    (1) Some bags are rings.
    (2) No papers are rings.
    (3) Some stones are not papers.

    Conclusions:
    (I) All bags are stones.
    (II) No stones are rings.

    Take the statements to be true, however odd they sound. Which conclusion follows?
    Question 8
    Answer and working

    Answer D

    Conclusion I need not hold: some bags may lie outside stones. Conclusion II need not hold: stones and rings may overlap. So: Neither conclusion follows.

  9. Statement: W ≥ V ≥ N ≥ Z > A
    Conclusions: I. W ≥ A   II. W > Z
    Question 9
    Answer and working

    Answer A

    W and A: the chain gives W > A, so W ≥ A is definitely true. W and Z: the chain gives W ≥ Z, so W > Z is not definitely true. So: Only conclusion I follows.

  10. Statement: V ≥ E ≥ D = C = Y
    Conclusions: I. V ≤ Y   II. V ≥ Y
    Question 10
    Answer and working

    Answer B

    V and Y: the chain gives V ≥ Y, so V ≤ Y is not definitely true. V and Y: the chain gives V ≥ Y, so V ≥ Y is definitely true. So: Only conclusion II follows.

  11. In a certain code, LADDER is written as 50. How is LAMP written in that code?
    Question 11
    Answer and working

    Answer C

    LADDER = 50 is the sum of (position + 1) for each letter. For LAMP: 13 + 2 + 14 + 17 = 46.

  12. R is the brother of X. Y is the wife of R. How is Y related to X?
    Question 12
    Answer and working

    Answer A

    Follow the links out from X: R is X’s brother; Y is R’s wife. So Y is X’s sister-in-law.

  13. Lata walks 6 km towards the west. She turns right and walks 15 km. She turns left and walks 2 km. How far, and in which direction, is she from the starting point?
    Question 13
    Answer and working

    Answer D

    Taking east and north as positive: she ends 8 km west and 15 km north of the start. Distance = √(8² + 15²) = 17 km. 17 km, north-west.

  14. Statement: J ≤ W < C > S > Z
    Conclusions: I. S < J   II. Z < C
    Question 14
    Answer and working

    Answer B

    S and J: the signs between them point both ways, so no relation can be fixed, so S < J is not definitely true. Z and C: the chain gives Z < C, so Z < C is definitely true. So: Only conclusion II follows.

  15. In the English alphabet, which letter is 8th to the left of the 15th letter from the left?
    Question 15
    Answer and working

    Answer A

    The 15th letter from the left is O (position 15). 8 places to the left: position 7, which is G.

  16. Statements:
    (1) No papers are clocks.
    (2) Some clocks are buses.

    Conclusions:
    (I) Some papers are buses.
    (II) All buses are clocks.

    Take the statements to be true, however odd they sound. Which conclusion follows?
    Question 16
    Answer and working

    Answer D

    Conclusion I need not hold: papers and buses need not overlap at all. Conclusion II need not hold: some buses may lie outside clocks. So: Neither conclusion follows.

  17. Statements:
    (1) All boxes are papers.
    (2) Some boxes are cups.
    (3) All cups are coins.

    Conclusions:
    (I) Some boxes are papers.
    (II) Some coins are cups.

    Take the statements to be true, however odd they sound. Which conclusion follows?
    Question 17
    Answer and working

    Answer E

    Conclusion I holds in every diagram the statements allow. Conclusion II holds in every diagram the statements allow. So: Both conclusions follow.

  18. Which one does not belong with the others?
    Question 18
    Answer and working

    Answer C

    In the others the second number is 3n + 1 of the first; 3 : 11 breaks it. The odd one is 3 : 11.

  19. In a certain code, MANGO is written as NZMTL. How is CLOUD written in that code?
    Question 19
    Answer and working

    Answer D

    From MANGO → NZMTL: each letter is replaced by its opposite in the alphabet (A ↔ Z, B ↔ Y …). Applied to CLOUD: XOLFW.

  20. Directions for questions 20 to 24

    Seven friends, Arun, Bina, Chetan, Divya, Esha, Farhan and Gopal, sit in a row facing north. Farhan sits third to the right of Bina. Exactly one person sits between Farhan and Arun. Exactly 4 people sit between Chetan and Bina. Exactly 2 people sit between Esha and Farhan. Farhan sits somewhere to the right of Divya.
  21. Who sits at the extreme left end?
    Question 20
    Answer and working

    Answer C

    Only one order fits every clue, from the left: Bina, Arun, Divya, Farhan, Gopal, Chetan, Esha. Bina.

  22. Who sits exactly between Farhan and Chetan?
    Question 21
    Answer and working

    Answer D

    Only one order fits every clue, from the left: Bina, Arun, Divya, Farhan, Gopal, Chetan, Esha. Gopal.

  23. What is Divya’s position from the left end?
    Question 22
    Answer and working

    Answer E

    Only one order fits every clue, from the left: Bina, Arun, Divya, Farhan, Gopal, Chetan, Esha. 3rd.

  24. Who sits second to the right of Gopal?
    Question 23
    Answer and working

    Answer A

    Only one order fits every clue, from the left: Bina, Arun, Divya, Farhan, Gopal, Chetan, Esha. Esha.

  25. How many people sit between Divya and Bina?
    Question 24
    Answer and working

    Answer C

    Only one order fits every clue, from the left: Bina, Arun, Divya, Farhan, Gopal, Chetan, Esha. Between them: 1.

  26. Statements:
    (1) Some lamps are clouds.
    (2) No clouds are pens.
    (3) No coins are pens.

    Conclusions:
    (I) Some clouds are lamps.
    (II) All pens are coins.

    Take the statements to be true, however odd they sound. Which conclusion follows?
    Question 25
    Answer and working

    Answer A

    Conclusion I holds in every diagram the statements allow. Conclusion II need not hold: some pens may lie outside coins. So: Only conclusion I follows.

  27. Rekha walks 6 km towards the north. She turns left and walks 7 km. She turns left and walks 5 km. In which direction is she from the starting point?
    Question 26
    Answer and working

    Answer E

    Taking east and north as positive: she ends 7 km west and 1 km north of the start, which is to the North-west.

  28. In a certain code, TRAIN is written as GIZRM. How is RIBBON written in that code?
    Question 27
    Answer and working

    Answer E

    From TRAIN → GIZRM: each letter is replaced by its opposite in the alphabet (A ↔ Z, B ↔ Y …). Applied to RIBBON: IRYYLM.

  29. Statement: W ≥ K = Q = Y < F
    Conclusions: I. K ≥ Y   II. F ≥ Q
    Question 28
    Answer and working

    Answer E

    K and Y: the chain gives K = Y, so K ≥ Y is definitely true. F and Q: the chain gives F > Q, so F ≥ Q is definitely true. So: Both conclusions follow.

  30. Statements:
    (1) No papers are bags.
    (2) No bags are stones.

    Conclusions:
    (I) Some bags are not papers.
    (II) All bags are stones.

    Take the statements to be true, however odd they sound. Which conclusion follows?
    Question 29
    Answer and working

    Answer A

    Conclusion I holds in every diagram the statements allow. Conclusion II need not hold: some bags may lie outside stones. So: Only conclusion I follows.

  31. In a certain code, KNIFE is written as 50. How is LEMON written in that code?
    Question 30
    Answer and working

    Answer B

    KNIFE = 50 is the sum of (position + 1) for each letter. For LEMON: 13 + 6 + 14 + 16 + 15 = 64.

  32. Statement: B ≥ E > U ≥ F ≥ Q
    Conclusions: I. Q < U   II. Q = U
    Question 31
    Answer and working

    Answer C

    Q and U: the chain gives Q ≤ U, so Q < U is not definitely true. Q and U: the chain gives Q ≤ U, so Q = U is not definitely true. Together the two cover every possibility the chain allows. So: Either conclusion I or II follows.

  33. In a queue, Farhan is 14th from the front and Priya is 35th from the front. How many people stand between them?
    Question 32
    Answer and working

    Answer E

    Between positions 14 and 35 there are 35 − 14 − 1 = 20 people.

  34. Y is the wife of D. D is the brother of Q. How is Y related to Q?
    Question 33
    Answer and working

    Answer B

    Follow the links out from Q: D is Q’s brother; Y is D’s wife. So Y is Q’s sister-in-law.

  35. Which number replaces the question mark? 4, 10, 22, 46, 94, 190, ?
    Question 34
    Answer and working

    Answer A

    The rule: each term is the previous × 2 + 2. The missing term is 382.

  36. If ‘+’ means ‘÷’, ‘−’ means ‘×’, ‘×’ means ‘−’, ‘÷’ means ‘+’, what is the value of 27 ÷ 12 × 9 + 9 − 4?
    Question 35
    Answer and working

    Answer C

    Replace the signs: 27 + 12 − 9 ÷ 9 × 4. Division and multiplication first, then addition and subtraction: 35.

  37. K is the mother of W. E is the sister of K. How is E related to W?
    Question 36
    Answer and working

    Answer B

    Follow the links out from W: K is W’s mother; E is K’s sister. So E is W’s aunt.

  38. Statement: U ≤ Q > B ≤ E < H
    Conclusions: I. B ≤ H   II. U ≤ B
    Question 37
    Answer and working

    Answer A

    B and H: the chain gives B < H, so B ≤ H is definitely true. U and B: the signs between them point both ways, so no relation can be fixed, so U ≤ B is not definitely true. So: Only conclusion I follows.

  39. Tarun walks 11 km towards the east. He turns right and walks 2 km. He turns right and walks 7 km. He turns left and walks 3 km. In which direction is he from the starting point?
    Question 38
    Answer and working

    Answer B

    Taking east and north as positive: he ends 4 km east and 5 km south of the start, which is to the South-east.

  40. In the English alphabet, which letter is 8th to the right of the 13th letter from the left?
    Question 39
    Answer and working

    Answer E

    The 13th letter from the left is M (position 13). 8 places to the right: position 21, which is U.

  41. In a row of 37 students, Anjali is 16th from the left. What is Anjali’s position from the right?
    Question 40
    Answer and working

    Answer D

    Position from the right = total − position from the left + 1 = 37 − 16 + 1 = 22nd.

Part BQuantitative Aptitude

40 questions, 1 mark each, 0.25 off for a wrong answer

  1. Solve both equations and compare x and y.
    I. x² + 2x − 24 = 0
    II. y² − 4y = 0
    Question 41
    Answer and working

    Answer E

    I gives x = −6 or 4. II gives y = 0 or 4. Some x are bigger and some smaller than some y, so no single relation holds: x = y or no relation can be established.

  2. What is the average of the first 19 even numbers?
    Question 42
    Answer and working

    Answer C

    The first 19 even numbers add up to 19 × 20 = 380; the average is 20.

  3. Solve both equations and compare x and y.
    I. x² − x − 72 = 0
    II. y² + 4y + 3 = 0
    Question 43
    Answer and working

    Answer E

    I gives x = −8 or 9. II gives y = −3 or −1. Some x are bigger and some smaller than some y, so no single relation holds: x = y or no relation can be established.

  4. The incomes of P and Q are in the ratio 7 : 5 and their expenditures are in the ratio 11 : 5. If each saves ₹10,000 a month, what is P’s monthly income?
    Question 44
    Answer and working

    Answer D

    Incomes 7x and 5x. (7x − 10,000) : (5x − 10,000) = 11 : 5 gives x = 3,000. P’s income = 7 × 3,000 = ₹21,000.

  5. Solve both equations and compare x and y.
    I. x² − x − 20 = 0
    II. y² − 4y − 12 = 0
    Question 45
    Answer and working

    Answer E

    I gives x = −4 or 5. II gives y = −2 or 6. Some x are bigger and some smaller than some y, so no single relation holds: x = y or no relation can be established.

  6. 500 is what percent of 800?
    Question 46
    Answer and working

    Answer B

    500 ÷ 800 × 100 = 62.5%.

  7. 110 litres of a mixture contains milk and water in the ratio 7 : 4. How much water must be added to make the ratio 5 : 3?
    Question 47
    Answer and working

    Answer C

    Milk = 70 l, water = 40 l. For 5 : 3, water must be 70 × 3/5 = 42 l. Add 42 − 40 = 2 litres.

  8. Solve both equations and compare x and y.
    I. x² − 13x + 12 = 0
    II. y² − 13y + 40 = 0
    Question 48
    Answer and working

    Answer E

    I gives x = 1 or 12. II gives y = 5 or 8. Some x are bigger and some smaller than some y, so no single relation holds: x = y or no relation can be established.

  9. Which number replaces the question mark? 124, 215, 342, 511, 728, ?
    Question 49
    Answer and working

    Answer E

    The rule: the terms are 5³, 6³, 7³ … minus 1. The missing term is 999.

  10. Find the wrong number in the series: 27, 38, 51, 66, 83, 108, 123
    Question 50
    Answer and working

    Answer B

    The rule: the terms are 5², 6², 7² … plus 2. The term in place of 108 should be 102, so the wrong number is 108.

  11. Which number replaces the question mark? 8, 24, ?, 216, 648, 1,944
    Question 51
    Answer and working

    Answer B

    The rule: each term is the previous × 3. The missing term is 72.

  12. Simplify: 3⁄5 + 3⁄4 + 7⁄10
    Question 52
    Answer and working

    Answer D

    Over the common denominator 20: the sum is 41⁄20. Adding tops and bottoms separately (13/19) is the trap.

  13. A trader buys a bicycle for ₹2,300 and sells it for ₹1,610. What is the profit or loss percent?
    Question 53
    Answer and working

    Answer A

    Loss = ₹690. As a percent of the cost price: 690 ÷ 2,300 × 100 = 30% loss.

  14. Directions for questions 54 to 58

    Study the table and answer the questions that follow.

    Bicycles sold by five shops, in two successive years
    ShopYear 1Year 2
    Shop P580812
    Shop Q800840
    Shop R380418
    Shop S540567
    Shop T580696
  15. What is the average Year 2 figure of the five?
    Question 54
    Answer and working

    Answer E

    Sum of Year 2 = 3,333. ÷ 5 = 666.6.

  16. What is the ratio of Shop P’s Year 1 figure to Shop R’s Year 2 figure?
    Question 55
    Answer and working

    Answer A

    580 : 418 = 290 : 209.

  17. By what percent did Shop T’s figure change from Year 1 to Year 2?
    Question 56
    Answer and working

    Answer D

    Change = 696 − 580 = 116. On Year 1: 116 ÷ 580 × 100 = 20% increase.

  18. What is the total for Shop R over the two years?
    Question 57
    Answer and working

    Answer A

    380 + 418 = 798.

  19. Which one grew the most in percentage terms from Year 1 to Year 2?
    Question 58
    Answer and working

    Answer C

    Growth: Shop P 40%, Shop Q 5%, Shop R 10%, Shop S 5%, Shop T 20%. The highest is Shop P.

  20. Two successive discounts of 20% and 20% are equal to a single discount of:
    Question 59
    Answer and working

    Answer E

    Single discount = 20 + 20 − (20 × 20)/100 = 36%. The second discount is taken on the already reduced price, so the two do not simply add.

  21. Which number replaces the question mark? 12, 66, ?, 63, 18, 60
    Question 60
    Answer and working

    Answer D

    The rule: two series alternate: 12, 15, 18 … rising by 3, and 66, 63, 60 … falling by 3. The missing term is 15.

  22. What is the value of 95² − 27²?
    Question 61
    Answer and working

    Answer B

    a² − b² = (a + b)(a − b) = 122 × 68 = 8,296.

  23. A train 110 m long crosses a platform 400 m long in 51 seconds. What is the speed of the train?
    Question 62
    Answer and working

    Answer E

    It must cover its own length and the platform: 110 + 400 = 510 m in 51 s, so 10 m/s = 10 × 18/5 = 36 km/h.

  24. Solve both equations and compare x and y.
    I. x² − 36 = 0
    II. y² − 14y + 24 = 0
    Question 63
    Answer and working

    Answer E

    I gives x = −6 or 6. II gives y = 2 or 12. Some x are bigger and some smaller than some y, so no single relation holds: x = y or no relation can be established.

  25. What is the difference between the compound interest and the simple interest on ₹54,200 for 2 years at 10% per annum?
    Question 64
    Answer and working

    Answer E

    For 2 years, CI − SI = P × (R/100)² = 54,200 × (10/100)² = ₹542.

  26. What is √729 + √196 − √289?
    Question 65
    Answer and working

    Answer C

    27 + 14 − 17 = 24.

  27. What is the value of 69² − 51²?
    Question 66
    Answer and working

    Answer B

    a² − b² = (a + b)(a − b) = 120 × 18 = 2,160.

  28. A is four times as efficient as B. Together they finish a job in 48 days. How long would A take alone?
    Question 67
    Answer and working

    Answer D

    If B does 1 unit a day, A does 4; together 5 units a day for 48 days = 240 units. A alone: 240 ÷ 4 = 60 days.

  29. Solve both equations and compare x and y.
    I. x² + 4x − 5 = 0
    II. y² − 17y + 60 = 0
    Question 68
    Answer and working

    Answer C

    I gives x = −5 or 1. II gives y = 5 or 12. Every x is smaller than every y: x < y.

  30. Two fair dice are thrown together. What is the probability that both show the same number?
    Question 69
    Answer and working

    Answer C

    There are 36 equally likely outcomes and 6 of them qualify. Probability = 1⁄6.

  31. A number is first increased by 25% and then decreased by 40%. What is the net change?
    Question 70
    Answer and working

    Answer B

    Net effect = 25 − 40 − (25 × 40)/100 = −25%, so 25% decrease.

  32. Which number replaces the question mark? 2, 3, 8, 27, 112, ?
    Question 71
    Answer and working

    Answer B

    The rule: each term is the previous × 1 + 1, × 2 + 2, × 3 + 3, and so on. The missing term is 565.

  33. Solve both equations and compare x and y.
    I. x² − 4x − 77 = 0
    II. y² − 8y − 20 = 0
    Question 72
    Answer and working

    Answer E

    I gives x = −7 or 11. II gives y = −2 or 10. Some x are bigger and some smaller than some y, so no single relation holds: x = y or no relation can be established.

  34. What is √289 + √784 − √676?
    Question 73
    Answer and working

    Answer B

    17 + 28 − 26 = 19.

  35. A boat covers 28 km downstream in 2 hours and 40 km upstream in 5 hours. What is the speed of the stream?
    Question 74
    Answer and working

    Answer C

    Downstream speed = 28 ÷ 2 = 14 km/h; upstream = 40 ÷ 5 = 8 km/h. Stream = (14 − 8) ÷ 2 = 3 km/h.

  36. A train 130 m long passes a signal post in 13 seconds. What is its speed in km/h?
    Question 75
    Answer and working

    Answer A

    Speed = 130 ÷ 13 = 10 m/s = 10 × 18/5 = 36 km/h.

  37. Which number replaces the question mark? 2, 3, 5, 9, 17, 33, ?
    Question 76
    Answer and working

    Answer D

    The rule: each term is the previous × 2 − 1. The missing term is 65.

  38. The simple interest on a sum for 3 years at 10% per annum is ₹11,850. What is the sum?
    Question 77
    Answer and working

    Answer A

    P = SI × 100 / (R × T) = 11,850 × 100 / (10 × 3) = ₹39,500.

  39. A shopkeeper marks an article 20% above its cost price and allows a discount of 25%. If the article was sold for ₹2,160, what was its cost price?
    Question 78
    Answer and working

    Answer E

    SP = CP × 1.2 × 0.75 = CP × 0.9. So CP = 2,160 ÷ 0.9 = ₹2,400.

  40. Simplify: 97 + 5 × 2 − 22 ÷ 2
    Question 79
    Answer and working

    Answer D

    Division and multiplication first: 5 × 2 = 10 and 22 ÷ 2 = 11. Then 97 + 10 − 11 = 96.

  41. The present ages of Asha and her elder brother are in the ratio 7 : 9. After 9 years, the ratio will be 5 : 6. What is Asha’s present age?
    Question 80
    Answer and working

    Answer B

    Ages 7x and 9x. (7x + 9) : (9x + 9) = 5 : 6 gives x = 3. Asha is 7 × 3 = 21 years.