- Test booklet
- प्रश्न पुस्तिका
- Booklet No.
- 2906040
- Series
- A
RBI Assistant Prelims Paper 8
- Questions
- 100
- Maximum marks
- 100
- Minutes allowed
- 60
Instructions निर्देश
- This booklet has 100 questions in 3 parts: A. English Language (30), B. Numerical Ability (35), C. Reasoning Ability (35).
- Each part has its own clock. When it runs out, that part closes and the next opens.
- 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.
- 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 AEnglish Language
-
Select the word closest in meaning to the given word.
SpurtAnswer and working
Answer A
Spurt (verb) and Gush share their main meaning. None of the other options does.
Source: WordNet 3.1
-
Select the correctly spelt word.
Answer and working
Answer B
The correct spelling is abstinence.
-
Select the one word that can replace the given group of words.
A student who attends a course but does not take it for creditAnswer and working
-
Select the word opposite in meaning to the given word.
BoilAnswer and working
-
Select the one word that can replace the given group of words.
An imaginary being similar to a person but smaller and with hairy feetAnswer and working
Answer C
Hobbit: an imaginary being similar to a person but smaller and with hairy feet.
Source: WordNet 3.1
-
Select the one word that can replace the given group of words.
Any new participant in some activityAnswer and working
-
Select the incorrectly spelt word.
Answer and working
Answer E
apprintice is wrong; it is spelt apprentice. The others are correct.
-
Select the one word that can replace the given group of words.
An officer aboard a ship who keeps accounts and attends to the passengers' welfareAnswer and working
Answer A
Purser: an officer aboard a ship who keeps accounts and attends to the passengers' welfare.
Source: WordNet 3.1
-
Select the correctly spelt word.
Answer and working
Answer A
The correct spelling is barracuda.
-
Select the one word that can replace the given group of words.
Someone who supplies members or employeesAnswer and working
-
Select the word closest in meaning to the given word.
ScratchyAnswer and working
Answer B
Scratchy (adjective) and Abrasive share their main meaning. None of the other options does.
Source: WordNet 3.1
-
Select the word closest in meaning to the given word.
TeenAnswer and working
Answer D
Teen (adjective) and Adolescent share their main meaning. None of the other options does.
Source: WordNet 3.1
-
Select the word opposite in meaning to the given word.
AnteriorAnswer and working
-
Select the word opposite in meaning to the given word.
TallAnswer and working
-
Select the word opposite in meaning to the given word.
UpgradeAnswer and working
-
Select the word opposite in meaning to the given word.
FragrantAnswer and working
-
Select the correctly spelt word.
Answer and working
Answer D
The correct spelling is inefficient.
-
Select the one word that can replace the given group of words.
A person who tends a flock of goatsAnswer and working
-
Select the word closest in meaning to the given word.
VapidAnswer and working
Answer C
Vapid (adjective) and Bland share their main meaning. None of the other options does.
Source: WordNet 3.1
-
Select the word closest in meaning to the given word.
LumpAnswer and working
Answer B
Lump (noun) and Chunk share their main meaning. None of the other options does.
Source: WordNet 3.1
-
Select the word opposite in meaning to the given word.
BackwardAnswer and working
-
Select the correctly spelt word.
Answer and working
Answer B
The correct spelling is coronary.
-
Select the correctly spelt word.
Answer and working
Answer D
The correct spelling is narrative.
-
Select the correctly spelt word.
Answer and working
Answer C
The correct spelling is appropriately.
-
Select the word closest in meaning to the given word.
LumpyAnswer and working
Answer C
Lumpy (adjective) and Chunky share their main meaning. None of the other options does.
Source: WordNet 3.1
-
Select the word closest in meaning to the given word.
FraudulentAnswer and working
Answer A
Fraudulent (adjective) and Deceitful share their main meaning. None of the other options does.
Source: WordNet 3.1
-
Select the correctly spelt word.
Answer and working
Answer D
The correct spelling is unattractive.
-
Select the word closest in meaning to the given word.
UndermineAnswer and working
Answer A
Undermine (verb) and Sabotage share their main meaning. None of the other options does.
Source: WordNet 3.1
-
Select the word closest in meaning to the given word.
FlauntAnswer and working
Answer E
Flaunt (verb) and Swank share their main meaning. None of the other options does.
Source: WordNet 3.1
-
Select the correctly spelt word.
Answer and working
Answer D
The correct spelling is annihilation.
Part BNumerical Ability
-
Which number replaces the question mark? 8, 16, 32, 64, 128, ?
Answer and working
Answer B
The rule: each term is the previous × 2. The missing term is 256.
-
What is the difference between the compound interest and the simple interest on ₹55,025 for 2 years at 20% per annum?
Answer and working
Answer A
For 2 years, CI − SI = P × (R/100)² = 55,025 × (20/100)² = ₹2,201.
-
The sum of the present ages of a father and his son is 60 years. 2 years ago, the father was 6 times as old as the son. How old is the son now?
Answer and working
Answer A
Let the son be s. Then (60 − s − 2) = 6(s − 2), so 70 = 7s and s = 10 years.
-
What is 18% of 800?
Answer and working
Answer E
18% of 800 = 800 × 18/100 = 144.
-
Two trains 230 m and 190 m long run on parallel tracks in opposite directions at 48 km/h and 60 km/h. How long do they take to cross each other?
Answer and working
Answer D
Relative speed = 48 + 60 = 108 km/h = 30 m/s. Distance = 230 + 190 = 420 m. Time = 420 ÷ 30 = 14 seconds.
-
Solve both equations and compare x and y.
I. x² + 7x − 18 = 0
II. y² − 15y + 56 = 0Answer and working
Answer C
I gives x = −9 or 2. II gives y = 7 or 8. Every x is smaller than every y: x < y.
-
A boat covers 44 km downstream in 2 hours and 32 km upstream in 2 hours. What is the speed of the boat in still water?
Answer and working
Answer D
Downstream speed = 44 ÷ 2 = 22 km/h; upstream = 32 ÷ 2 = 16 km/h. Boat = (22 + 16) ÷ 2 = 19 km/h.
-
What is the mean proportional between 4 and 36?
Answer and working
Answer D
Mean proportional = √(4 × 36) = √144 = 12.
-
Simplify: 1⁄2 + 1⁄3 + 1⁄2
Answer and working
Answer A
Over the common denominator 6: the sum is 4⁄3. Adding tops and bottoms separately (5/11) is the trap.
-
By selling a watch for ₹540, a man loses 10%. For how much should he sell it to gain 15%?
Answer and working
Answer E
CP = 540 × 100/90 = ₹600. For a 15% gain: 600 × 115/100 = ₹690.
-
Solve both equations and compare x and y.
I. x² − 10x = 0
II. y² − 9y − 22 = 0Answer and working
Answer E
I gives x = 0 or 10. II gives y = −2 or 11. Some x are bigger and some smaller than some y, so no single relation holds: x = y or no relation can be established.
-
Solve both equations and compare x and y.
I. x² − x − 2 = 0
II. y² − 6y − 55 = 0Answer and working
Answer E
I gives x = −1 or 2. II gives y = −5 or 11. Some x are bigger and some smaller than some y, so no single relation holds: x = y or no relation can be established.
-
Which number replaces the question mark? 1, 3, 9, 27, 81, ?
Answer and working
Answer D
The rule: each term is the previous × 3. The missing term is 243.
Directions for questions 44 to 48
Study the table and answer the questions that follow.
Bicycles sold by five shops, in two successive years Shop Year 1 Year 2 Shop P 740 814 Shop Q 380 570 Shop R 680 612 Shop S 620 806 Shop T 700 1,050 -
By what percent did Shop S’s figure change from Year 1 to Year 2?
Answer and working
Answer B
Change = 806 − 620 = 186. On Year 1: 186 ÷ 620 × 100 = 30% increase.
-
What is the average Year 2 figure of the five?
Answer and working
Answer E
Sum of Year 2 = 3,852. ÷ 5 = 770.4.
-
Shop Q’s Year 2 figure is what percent of Shop P’s Year 2 figure?
Answer and working
Answer E
570 ÷ 814 × 100 = 70.02%.
-
What is the ratio of Shop Q’s Year 1 figure to Shop R’s Year 2 figure?
Answer and working
Answer D
380 : 612 = 95 : 153.
-
What is the total for Shop S over the two years?
Answer and working
Answer D
620 + 806 = 1,426.
-
The average of 8 numbers is 71. When one number is removed, the average of the rest is 72. Which number was removed?
Answer and working
Answer E
Total of 8 = 8 × 71 = 568. Total of 7 = 7 × 72 = 504. Removed = 568 − 504 = 64.
-
The population of a town is 13,550. It grows by 20% every year. What will it be after 2 years?
Answer and working
Answer E
13,550 × (1 + 20/100)² = 13,550 × 1.44 = 19,512. Growing 20% on 13,550 twice, not 40% once.
-
Which number replaces the question mark? 20, 25, ?, 38, 46, 55
Answer and working
Answer D
The rule: the differences grow by 1: 5, 6, 7, 8, 9, 10. The missing term is 31.
-
Simplify: 46 + 15 × 9 − 9 ÷ 3
Answer and working
Answer A
Division and multiplication first: 15 × 9 = 135 and 9 ÷ 3 = 3. Then 46 + 135 − 3 = 178.
-
A shopkeeper marks an article 20% above its cost price and allows a discount of 10%. If the article was sold for ₹3,240, what was its cost price?
Answer and working
Answer A
SP = CP × 1.2 × 0.9 = CP × 1.08. So CP = 3,240 ÷ 1.08 = ₹3,000.
-
A is four times as efficient as B. Together they finish a job in 12 days. How long would A take alone?
Answer and working
Answer A
If B does 1 unit a day, A does 4; together 5 units a day for 12 days = 60 units. A alone: 60 ÷ 4 = 15 days.
-
A bag holds 5 red, 5 blue and 1 green balls. Two balls are drawn at random without replacement. What is the probability that both are red?
Answer and working
Answer C
Ways to pick 2 red: 10. Ways to pick any 2: 55. Probability = 2⁄11.
-
Solve both equations and compare x and y.
I. x² − 3x − 40 = 0
II. y² + 2y − 15 = 0Answer and working
Answer E
I gives x = −5 or 8. II gives y = −5 or 3. Some x are bigger and some smaller than some y, so no single relation holds: x = y or no relation can be established.
-
Simplify: 72 + 11 × 8 − 21 ÷ 3
Answer and working
Answer D
Division and multiplication first: 11 × 8 = 88 and 21 ÷ 3 = 7. Then 72 + 88 − 7 = 153.
-
Which number replaces the question mark? 20, 29, 45, 70, 106, 155, ?
Answer and working
Answer A
The rule: the differences are squares: 9, 16, 25, 36, 49, 64. The missing term is 219.
-
Find the wrong number in the series: 18, 27, 38, 51, 66, 86, 102
Answer and working
Answer A
The rule: the terms are 4², 5², 6² … plus 2. The term in place of 86 should be 83, so the wrong number is 86.
-
Solve both equations and compare x and y.
I. x² − 25 = 0
II. y² − 13y + 12 = 0Answer and working
Answer E
I gives x = −5 or 5. II gives y = 1 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.
-
Simplify: 3⁄4 + 1⁄3 + 1⁄2
Answer and working
Answer E
Over the common denominator 24: the sum is 19⁄12. Adding tops and bottoms separately (9/15) is the trap.
-
A bus goes from Pune to Nashik at 16 km/h and returns by the same road at 112 km/h. What is its average speed for the whole journey?
Answer and working
Answer A
For equal distances, average speed = 2xy/(x + y) = 2 × 16 × 112 ÷ 128 = 28 km/h. The plain average, 64, ignores that the slower leg takes longer.
-
The simple interest on a sum for 5 years at 8% per annum is ₹15,800. What is the sum?
Answer and working
Answer D
P = SI × 100 / (R × T) = 15,800 × 100 / (8 × 5) = ₹39,500.
-
In what ratio must rice at ₹24/kg be mixed with rice at ₹39/kg so that the mixture is worth ₹36/kg?
Answer and working
Answer E
By alligation: cheaper : dearer = (39 − 36) : (36 − 24) = 3 : 12 = 1 : 4.
-
What is the value of 85² − 43²?
Answer and working
Answer B
a² − b² = (a + b)(a − b) = 128 × 42 = 5,376.
Part CReasoning Ability
-
Statement: F ≥ G ≥ K > D ≤ U
Conclusions: I. K = F II. K < FAnswer and working
Answer C
K and F: the chain gives K ≤ F, so K = F is not definitely true. K and F: the chain gives K ≤ F, so K < F is not definitely true. Together the two cover every possibility the chain allows. So: Either conclusion I or II follows.
-
In a certain code, LIGHT is written as MJHIU. How is SHIP written in that code?
Answer and working
Answer D
From LIGHT → MJHIU: each letter moves 1 place forward. Applied to SHIP: TIJQ.
-
In the English alphabet, which letter is 7th to the left of the 17th letter from the left?
Answer and working
Answer E
The 17th letter from the left is Q (position 17). 7 places to the left: position 10, which is J.
-
J is the daughter of K. Z is the son of J. How is Z related to K?
Answer and working
Answer C
Follow the links out from K: J is K’s daughter; Z is J’s son. So Z is K’s grandson.
-
If ‘+’ means ‘×’, ‘−’ means ‘÷’, ‘×’ means ‘−’, ‘÷’ means ‘+’, what is the value of 51 + 9 − 9 × 5 ÷ 12?
Answer and working
Answer B
Replace the signs: 51 × 9 ÷ 9 − 5 + 12. Division and multiplication first, then addition and subtraction: 58.
-
In a certain code, MONEY is written as 77. How is BOTTLE written in that code?
Answer and working
Answer C
MONEY = 77 is the sum of (position + 1) for each letter. For BOTTLE: 3 + 16 + 21 + 21 + 13 + 6 = 80.
-
If ‘+’ means ‘×’, ‘−’ means ‘+’, ‘×’ means ‘÷’, ‘÷’ means ‘−’, what is the value of 56 × 2 − 5 ÷ 14 + 2?
Answer and working
Answer E
Replace the signs: 56 ÷ 2 + 5 − 14 × 2. Division and multiplication first, then addition and subtraction: 5.
-
In a queue, Ravi is 16th from the front and Dev is 21st from the front. How many people stand between them?
Answer and working
Answer B
Between positions 16 and 21 there are 21 − 16 − 1 = 4 people.
-
Statement: N < Y ≥ R ≤ X < Z
Conclusions: I. Z ≥ R II. Y ≤ ZAnswer and working
Answer A
Z and R: the chain gives Z > R, so Z ≥ R is definitely true. Y and Z: the signs between them point both ways, so no relation can be fixed, so Y ≤ Z is not definitely true. So: Only conclusion I follows.
-
Statement: Q < W ≤ T ≤ G = S
Conclusions: I. W < S II. W = SAnswer and working
Answer C
W and S: the chain gives W ≤ S, so W < S is not definitely true. W and S: the chain gives W ≤ S, so W = S is not definitely true. Together the two cover every possibility the chain allows. So: Either conclusion I or II follows.
-
Statements:
(1) Some bells are roads.
(2) All chairs are roads.
(3) All chairs are doors.Conclusions:
Take the statements to be true, however odd they sound. Which conclusion follows?
(I) All bells are chairs.
(II) Some bells are doors.Answer and working
Answer D
Conclusion I need not hold: some bells may lie outside chairs. Conclusion II need not hold: bells and doors need not overlap at all. So: Neither conclusion follows.
-
Statements:
(1) No rings are flowers.
(2) No rings are tables.Conclusions:
Take the statements to be true, however odd they sound. Which conclusion follows?
(I) Some tables are not rings.
(II) Some rings are tables.Answer and working
Answer A
Conclusion I holds in every diagram the statements allow. Conclusion II need not hold: rings and tables need not overlap at all. So: Only conclusion I follows.
-
Kabir walks 9 km towards the south. He turns left and walks 10 km. He turns left and walks 8 km. He turns right and walks 8 km. He turns left and walks 15 km. Which direction is he facing now?
Answer and working
Answer D
Each right turn is a quarter turn clockwise, each left anticlockwise. The last leg runs North.
-
Statements:
(1) Some tables are planes.
(2) No fans are planes.Conclusions:
Take the statements to be true, however odd they sound. Which conclusion follows?
(I) All fans are tables.
(II) Some fans are not tables.Answer and working
Answer C
Conclusion I need not hold: some fans may lie outside tables. Conclusion II need not hold: every one of the fans may be tables. But the two cannot both be false: in every diagram exactly one of them is true. So: Either conclusion I or II follows.
-
Pointing to a man in a photograph, Pooja said, ‘He is the son of my grandfather’s only son.’ How is the man related to Pooja?
Answer and working
Answer A
My grandfather’s only son is my father; his child, other than me, is my brother or sister. So the man is Pooja’s brother.
-
Vijay walks 10 km towards the east. He turns left and walks 5 km. He turns left and walks 4 km. He turns right and walks 7 km. He turns left and walks 11 km. How far, and in which direction, is he from the starting point?
Answer and working
Answer D
Taking east and north as positive: he ends 5 km west and 12 km north of the start. Distance = √(5² + 12²) = 13 km. 13 km, north-west.
-
P is the husband of T. T is the daughter of B. How is P related to B?
Answer and working
Answer A
Follow the links out from B: T is B’s daughter; P is T’s husband. So P is B’s son-in-law.
-
Arun walks 7 km towards the west. He turns right and walks 6 km. He turns right and walks 7 km. He turns left and walks 2 km. How far, and in which direction, is he from the starting point?
Answer and working
Answer E
Taking east and north as positive: he ends 0 km east and 8 km north of the start. Distance = √(0² + 8²) = 8 km. 8 km, north.
-
Statement: S ≥ A > D < J ≥ F
Conclusions: I. S < F II. A > JAnswer and working
Answer D
S and F: the signs between them point both ways, so no relation can be fixed, so S < F is not definitely true. A and J: the signs between them point both ways, so no relation can be fixed, so A > J is not definitely true. So: Neither conclusion follows.
Directions for questions 85 to 89
Six friends, Arun, Bina, Chetan, Divya, Esha and Farhan, sit in a row facing north. Exactly one person sits between Bina and Farhan. Exactly 4 people sit between Farhan and Arun. Exactly one person sits between Chetan and Esha. Arun sits somewhere to the right of Farhan. Farhan and Chetan sit next to each other.-
Who sits at the extreme right end?
Answer and working
Answer D
Only one order fits every clue, from the left: Farhan, Chetan, Bina, Esha, Divya, Arun. Arun.
-
Who sits second to the right of Farhan?
Answer and working
Answer C
Only one order fits every clue, from the left: Farhan, Chetan, Bina, Esha, Divya, Arun. Bina.
-
What is Divya’s position from the left end?
Answer and working
Answer E
Only one order fits every clue, from the left: Farhan, Chetan, Bina, Esha, Divya, Arun. 5th.
-
Which pair sits at the two ends of the row?
Answer and working
Answer D
Only one order fits every clue, from the left: Farhan, Chetan, Bina, Esha, Divya, Arun. Farhan and Arun.
-
Who sits at the extreme left end?
Answer and working
Answer B
Only one order fits every clue, from the left: Farhan, Chetan, Bina, Esha, Divya, Arun. Farhan.
-
In a class, Kabir ranks 7th from the top and 16th from the bottom. How many students are in the class?
Answer and working
Answer C
Kabir is counted in both ranks, so the total is 7 + 16 − 1 = 22.
-
Which number replaces the question mark? 61, 67, 71, 73, 79, 83, ?
Answer and working
Answer A
The rule: consecutive prime numbers. The missing term is 89.
-
Statement: R = A ≤ V < P < F
Conclusions: I. R ≤ F II. R = VAnswer and working
Answer A
R and F: the chain gives R < F, so R ≤ F is definitely true. R and V: the chain gives R ≤ V, so R = V is not definitely true. So: Only conclusion I follows.
-
In a certain code, GREEN is written as 49. How is MANGO written in that code?
Answer and working
Answer B
GREEN = 49 is the sum of the letters’ positions in the alphabet (A = 1 … Z = 26). For MANGO: 13 + 1 + 14 + 7 + 15 = 50.
-
Which one does not belong with the others?
Answer and working
Answer B
In the others the second number is n³ of the first; 4 : 66 breaks it. The odd one is 4 : 66.
-
Statements:
(1) No roads are cups.
(2) Some roads are not papers.Conclusions:
Take the statements to be true, however odd they sound. Which conclusion follows?
(I) Some cups are papers.
(II) No cups are papers.Answer and working
Answer C
Conclusion I need not hold: cups and papers need not overlap at all. Conclusion II need not hold: cups and papers may overlap. But the two cannot both be false: in every diagram exactly one of them is true. So: Either conclusion I or II follows.
-
Statements:
(1) All bags are shirts.
(2) Some shirts are not lamps.
(3) All books are lamps.Conclusions:
Take the statements to be true, however odd they sound. Which conclusion follows?
(I) No shirts are books.
(II) Some books are lamps.Answer and working
Answer B
Conclusion I need not hold: shirts and books may overlap. Conclusion II holds in every diagram the statements allow. So: Only conclusion II follows.
-
Statements:
(1) Some clocks are lamps.
(2) Some lamps are not shirts.Conclusions:
Take the statements to be true, however odd they sound. Which conclusion follows?
(I) Some shirts are not lamps.
(II) All shirts are lamps.Answer and working
Answer C
Conclusion I need not hold: every one of the shirts may be lamps. Conclusion II need not hold: some shirts may lie outside lamps. But the two cannot both be false: in every diagram exactly one of them is true. So: Either conclusion I or II follows.
-
In a certain code, BRICK is written as CQJBL. How is CHAIR written in that code?
Answer and working
Answer E
From BRICK → CQJBL: letters in odd places move 1 forward, letters in even places move 1 back. Applied to CHAIR: DGBHS.
-
Which number replaces the question mark? 16, 50, 20, 47, 24, 44, 28, ?
Answer and working
Answer D
The rule: two series alternate: 16, 20, 24 … rising by 4, and 50, 47, 44 … falling by 3. The missing term is 41.
-
In the English alphabet, which letter is 9th to the left of the 17th letter from the left?
Answer and working
Answer A
The 17th letter from the left is Q (position 17). 9 places to the left: position 8, which is H.