DSSSB TGT / PGT · Topic-wise previous year questions

Reasoning Previous Year Questions (page 2)

87 Reasoning questions asked in DSSSB TGT / PGT previous year papers, each with the correct answer and explanation. Read them free on UTpaper, or attempt the full papers as timed online tests.

  • 87 questions
  • 2 topics
  • Official answer key
  • Free

Practise by topic

Q51DSSSB TGT Computer Science, 7 Feb 2024, Shift 2 (12:30 PM)
In the given question, a statement is followed by two courses of action. Based on the information given in the statement, you have to assume everything in the statement to be true. Identify which course(s) of action logically follows. Statement: A bridge collapsed in town Y due to poor construction. Course of Action: I. Search-and-rescue operations should be conducted immediately. II. People should leave town Y and move to town X.
  1. AOnly I follow
  2. BOnly II follow
  3. CNeither I nor II follow
  4. DBoth I and II follow
Show answerHide answer

Correct answer: (A) Only I follow

Explanation

After a collapse, saving trapped and injured people is the immediate, practical step, so I follows. Abandoning the whole town because one bridge failed is an extreme, impractical response, so II does not follow.

Q52DSSSB TGT Computer Science, 7 Feb 2024, Shift 2 (12:30 PM)
A statement is followed by a set of conclusions in the given question. Identify which conclusion follows logically from the following statement. Statement: For the past three years the ABC Corporation has been planning to expand its operations in order to reach out to the world market. Conclusion: I. The ABC corporation is not competitive. II. The ABC corporation wants to capture the global market.
  1. ANeither I nor II follow
  2. BOnly I follow
  3. CBoth I and II follow
  4. DOnly II follow
Show answerHide answer

Correct answer: (D) Only II follow

Explanation

Expanding operations to reach the world market clearly shows the corporation wants a global share, so II follows. Nothing indicates it is uncompetitive, so I does not follow.

Q53DSSSB TGT Computer Science, 7 Feb 2024, Shift 2 (12:30 PM)
How many workers are uneducated?
  1. A17
  2. B12
  3. C8
  4. D10
Show answerHide answer

Correct answer: (B) 12

Explanation

In the diagram, the part of the Worker triangle lying outside both the Educated rectangle and the Man circle is 12. (The 3 inside the circle are uneducated men who are workers; counting them would give 15, which is not an option, so the intended answer is 12.)

Q54DSSSB TGT Computer Science, 25 Jun 2023, Shift 3 (4:30 PM)
Seven persons, A, B, C, D, E, F and G, are sitting around a circular table and facing the centre. Only A is between E and D. Only F is between B and G. B is second to the right of E. Which of the following is the correct position of G?
  1. AFourth to the left of E
  2. BSecond to the right of C
  3. CSecond to the left of A
  4. DTo the immediate left of F
Show answerHide answer

Correct answer: (C) Second to the left of A

Explanation

Place E, A, D together and B second to the right of E; F sits between B and G. Going clockwise the order is E, A, D, G, F, B, C, so G is second to the left of A.

Q55DSSSB TGT Computer Science, 25 Jun 2023, Shift 3 (4:30 PM)
A lady starts walking from her house and goes 6 m towards the east direction. Then, she turns right and walks 4 m. After that, she turns left and walks 3 m. Then, she turns right and walks 8 m and reaches her office. Find the shortest distance between her house and office.
  1. A17m
  2. B20 m
  3. C16m
  4. D15 m
Show answerHide answer

Correct answer: (D) 15 m

Explanation

She goes 6 + 3 = 9 m east and 4 + 8 = 12 m south in total. Shortest distance = √(9² + 12²) = √225 = 15 m.

Q56DSSSB TGT Computer Science, 25 Jun 2023, Shift 3 (4:30 PM)
If '+' means 'division', '×' means 'subtraction', '÷' means 'addition' and '−' means 'multiplication', then find the value of the following expression. 35 + 7 − 8 ÷ 25 × 2
  1. A55
  2. B63
  3. C50
  4. D62
Show answerHide answer

Correct answer: (B) 63

Explanation

After replacing the signs the expression is 35 ÷ 7 × 8 + 25 − 2 = 5 × 8 + 25 − 2 = 40 + 23 = 63.

Q57DSSSB TGT Computer Science, 25 Jun 2023, Shift 3 (4:30 PM)
Among six boys, Varun is taller than Mohit but not as tall as Ram. Jayant is taller than Dutta but shorter than Mohit. Dutta is taller than Keshav. Who is the tallest in the group?
  1. AMohit
  2. BRam
  3. CJayant
  4. DDutta
Show answerHide answer

Correct answer: (B) Ram

Explanation

The order is Ram > Varun > Mohit > Jayant > Dutta > Keshav, so Ram is the tallest.

Q58DSSSB TGT Computer Science, 25 Jun 2023, Shift 3 (4:30 PM)
Read the given statements and conclusions carefully. Assuming that the information given in the statements is true, even if it appears to be at variance with commonly known facts, decide which of the given conclusions logically follow(s) from the statements. Statements: Some dogs are whites. Some whites are lights. All lights are candles. Conclusions: I. Some candles are dogs. II. Some candles are whites. III. Some lights are dogs.
  1. AOnly II follows.
  2. BI and II follow.
  3. COnly I follows.
  4. DIli follows.
Show answerHide answer

Correct answer: (A) Only II follows.

Explanation

"Some whites are lights" and "All lights are candles" give "Some candles are whites", so II follows. Nothing definitely links dogs to lights or candles, so I and III do not follow.

Q59DSSSB TGT Computer Science, 25 Jun 2023, Shift 3 (4:30 PM)
Select the number from among the given options that can replace the question mark (?) in the following series. 4, 11, 25, 46, 74, ?
  1. A109
  2. B106
  3. C111
  4. D103
Show answerHide answer

Correct answer: (A) 109

Explanation

The differences are 7, 14, 21, 28, so the next difference is 35: 74 + 35 = 109.

Q60DSSSB TGT Computer Science, 25 Jun 2023, Shift 3 (4:30 PM)
A question is given followed by two arguments. Decide which of the arguments is/are strong with respect to the question. Statement: Should youth be encouraged to start businesses? Arguments: I. Yes, it will help in the industrial development of the country. II. Yes, they will reduce the burden on the job market.
  1. AOnly argument II is strong.
  2. BBoth I and 11 are strong.
  3. CNeither I nor 11 is strong.
  4. DOnly argument I is strong.
Show answerHide answer

Correct answer: (B) Both I and 11 are strong.

Explanation

Both arguments give a relevant, direct benefit of youth entrepreneurship (industrial growth and less pressure on the job market), so both are strong.

Q61DSSSB TGT Computer Science, 25 Jun 2023, Shift 3 (4:30 PM)
'X $ Y' means 'X is the wife of Y', 'X # Y' means 'X is the son of Y', 'X % Y' means 'X is the father of Y' and 'X @ Y' means 'X is the sister of Y'. In 'M @ T # F % H', how is M related to H?
  1. ABrother
  2. BMother
  3. CSister
  4. DDaughter
Show answerHide answer

Correct answer: (C) Sister

Explanation

M is the sister of T, T is the son of F, and F is the father of H. So M is F's daughter and H is F's child, which makes M the sister of H.

Q62DSSSB TGT Computer Science, 25 Jun 2023, Shift 3 (4:30 PM)
What approximate value should come in place of the question mark (?) in the following equation? 45.98 − 94.98 ÷ 19.02 + 34.92 × 8.02 = ?
  1. A311
  2. B341
  3. C330
  4. D321
Show answerHide answer

Correct answer: (D) 321

Explanation

Round off: 46 − 95 ÷ 19 + 35 × 8 = 46 − 5 + 280 = 321.

Q63DSSSB TGT Computer Science, 25 Jun 2023, Shift 3 (4:30 PM)
Four number-pairs have been given, out of which three are alike in some manner and one is different. Select the one that is different.
  1. A49-7
  2. B64-8
  3. C81-9
  4. D120-11
Show answerHide answer

Correct answer: (D) 120-11

Explanation

49 = 7², 64 = 8² and 81 = 9², but 11² = 121, not 120. So 120-11 is the odd pair.

Q64DSSSB TGT Computer Science, 25 Jun 2023, Shift 3 (4:30 PM)
Four number-pairs have been given, out of which three are alike in some manner and one is different. Select the one that is different.
  1. A18-72
  2. B50-190
  3. C46-174
  4. D30-110
Show answerHide answer

Correct answer: (A) 18-72

Explanation

50 × 4 − 10 = 190, 46 × 4 − 10 = 174 and 30 × 4 − 10 = 110, but 18 × 4 − 10 = 62, not 72. So 18-72 is different.

Q65DSSSB TGT Computer Science, 25 Jun 2023, Shift 3 (4:30 PM)
How many such pairs of letters are there in the word 'POSITIVE' each of which has as many letters between them as in the English alphabetical series when counted from both forward and backward directions?
  1. AOne
  2. BTwo
  3. CMore than three
  4. DThree
Show answerHide answer

Correct answer: (C) More than three

Explanation

The pairs are P-O, P-T, P-V, I-E and T-V, which makes 5 pairs. So the answer is more than three.

Q66DSSSB TGT Computer Science, 25 Jun 2023, Shift 3 (4:30 PM)
Four letter-clusters have been given, out of which three are alike in some manner and one is different. Select the one that is different.
  1. AKP
  2. BCY
  3. CIR
  4. DFU
Show answerHide answer

Correct answer: (B) CY

Explanation

Each of KP, IR and FU is an opposite-letter pair whose positions add up to 27 (11+16, 9+18, 6+21). CY gives 3 + 25 = 28, so it is the odd one.

Q67DSSSB TGT Computer Science, 25 Jun 2023, Shift 3 (4:30 PM)
Four letter-clusters have been given, out of which three are alike in some manner and one is different. Select the one that is different.
  1. ADEHG
  2. BRSVU
  3. CLMQP
  4. DJKNM
Show answerHide answer

Correct answer: (C) LMQP

Explanation

The C's followed by a vowel are the two in "CACA", the C in "CCU" and the C in "FCAU". That makes 4.

Q68DSSSB TGT Computer Science, 25 Jun 2023, Shift 3 (4:30 PM)
Answer the given question based on the following series. (Left) AAFBBFUUABFFAUCBBBFFFCCCCACAUUAABCCUFFCAUCCC (Right) How many C's in the above arrangement are immediately followed by a vowel?
  1. AFive
  2. BThree
  3. CTwo
  4. DFour
Show answerHide answer

Correct answer: (D) Four

Explanation

The bottom letter of each figure is the top letter of the figure before it, and the crossed lines alternate. So the next figure has V at the bottom and a new symbol (the arrow) at the top, as in option C.

Q69DSSSB TGT Computer Science, 25 Jun 2023, Shift 3 (4:30 PM)
In a class consisting of only girls, Amiksha got the 12th rank, and she was 41st from the bottom of the list of girls passed. Three girls did not take the examination, and one girl failed. What is the total strength of the class?
  1. A55
  2. B56
  3. C52
  4. D53
Show answerHide answer

Correct answer: (B) 56

Explanation

Passed girls = 12 + 41 − 1 = 52. Adding 3 girls who did not appear and 1 who failed gives 56.

Q70DSSSB TGT Computer Science, 25 Jun 2023, Shift 3 (4:30 PM)
Which two numbers should be interchanged to make the following equation correct? 40 + 20 × 65 ÷ 13 − 18 = 110
  1. A13 and 18
  2. B20 and 18
  3. C20 and 13
  4. D40 and 13
Show answerHide answer

Correct answer: (B) 20 and 18

Explanation

After swapping 20 and 18: 40 + 18 × 65 ÷ 13 − 20 = 40 + 18 × 5 − 20 = 40 + 90 − 20 = 110.

Q71DSSSB TGT Computer Science, 25 Jun 2023, Shift 2 (12:30 PM)
How many numbers are divisible by their immediately preceding number but not exactly by their immediately following number in the following series? 8 9 9 7 6 0 7 6 5 4 3 2 3 4 3 2 5 6 7 4 3 4 5 6 7 8 3 9 6 5 4 3 2 2 4 5 6 7
  1. AThree
  2. BOne
  3. CTwo
  4. DFour
Show answerHide answer

Correct answer: (D) Four

Explanation

Check each term against its neighbours: 9 (after 9, before 7), 9 (after 3, before 6), 2 (after 2, before 4) and 4 (after 2, before 5) are divisible by the preceding number but not by the following one. That gives four numbers.

Q72DSSSB TGT Computer Science, 25 Jun 2023, Shift 2 (12:30 PM)
Read the given statements and conclusions carefully. Assuming that the information given in the statements is true, even if it appears to be at variance with commonly known facts, decide which of the given conclusions logically follow(s) from the statements. Statements: A. All shirts are curtains. B. Some shirts are pens. C. Some pens are cups. Conclusions: I. No cups are shirts. II. No cups are curtains. III. No curtains are pens.
  1. ANone of the conclusions follow.
  2. BOnly conclusion III follows.
  3. COnly conclusions II and III follow.
  4. DOnly conclusions I and II follow.
Show answerHide answer

Correct answer: (A) None of the conclusions follow.

Explanation

Shirts and pens only partly overlap, and only some pens are cups. Nothing rules out cups being shirts or curtains, or curtains being pens (some shirts, which are curtains, are pens). So no conclusion follows.

Q73DSSSB TGT Computer Science, 25 Jun 2023, Shift 2 (12:30 PM)
Which two signs should be interchanged to make the following equation correct? 56 − 74 × 17 + 391 ÷ 23 = 1297
  1. A÷ and ×
  2. B+ and −
  3. C× and −
  4. D÷ and +
Show answerHide answer

Correct answer: (B) + and −

Explanation

After swapping + and −: 56 + 74 × 17 − 391 ÷ 23 = 56 + 1258 − 17 = 1297, which balances.

Q74DSSSB TGT Computer Science, 25 Jun 2023, Shift 2 (12:30 PM)
Select the term from among the given options that can replace the question mark (?) in the following series. PMT, QOW, RQZ, SSC, ?
  1. ATVG
  2. BTUF
  3. CTVF
  4. DTVE
Show answerHide answer

Correct answer: (B) TUF

Explanation

First letters go P, Q, R, S, T (+1). Second letters go M, O, Q, S, U (+2). Third letters go T, W, Z, C, F (+3). So the next term is TUF.

Q75DSSSB TGT Computer Science, 25 Jun 2023, Shift 2 (12:30 PM)
A person placed the 9 letters from A to I of the English alphabet into a row such that • There is exactly two letters' gap between two vowels. • I and B are placed at the extreme ends. • D and F are placed between A and E. • C is placed to the right of B and second to the left of D. • E is placed exactly between A and I. Which letter is placed in the middle of the row?
  1. AF
  2. BE
  3. CG
  4. DD
Show answerHide answer

Correct answer: (A) F

Explanation

B and I take the ends. C must be right of B, so B is 1st and I is 9th. E is 6th and A is 3rd (two-letter gaps between vowels). C is 2nd, D is 4th and F is 5th, so F is in the middle.

Q76DSSSB TGT Computer Science, 25 Jun 2023, Shift 2 (12:30 PM)
Read the given statement and conclusions carefully. Assuming that the information given in the statement is true, even if it appears to be at variance with commonly known facts, decide which of the given conclusions logically follow(s) from the statement. Statement: Physical exercises are good for health. Conclusions: I. Mostly players are healthy because of the involvement of physical exercise in their profession. II. Ravinder played tennis at the age of 70.
  1. AOnly conclusion II follows.
  2. BOnly conclusion I follows.
  3. CBoth conclusions I and II follow.
  4. DEither conclusion I or II follows.
Show answerHide answer

Correct answer: (B) Only conclusion I follows.

Explanation

If exercise is good for health, players who exercise as part of their profession will mostly be healthy, so I follows. Ravinder playing tennis at 70 is a specific fact that cannot be inferred from the statement.

Q77DSSSB TGT Computer Science, 25 Jun 2023, Shift 2 (12:30 PM)
A statement is given followed by two arguments. Decide which of the arguments is/are strong with respect to the statement. Statement: Should a college run any course without seeking affiliation from the university? Arguments: I. Yes, it will provide more opportunities to individuals. II. No, it will deteriorate the quality as college may not have all the equipment and resource to run any course.
  1. ABoth arguments I and II are strong.
  2. BOnly argument I is strong.
  3. COnly argument II is strong.
  4. DNeither argument I nor argument II is strong.
Show answerHide answer

Correct answer: (D) Neither argument I nor argument II is strong.

Explanation

Argument I is vague: unaffiliated courses would not give valid degrees, so they offer no real opportunity. Argument II rests on an assumption about resources rather than the core issue of recognition. Neither argument is strong.

Q78DSSSB TGT Computer Science, 25 Jun 2023, Shift 2 (12:30 PM)
Four number-pairs have been given, out of which three are alike in some manner and one is different. Select the one that is different.
  1. A59-413
  2. B37-269
  3. C61-427
  4. D47-329
Show answerHide answer

Correct answer: (B) 37-269

Explanation

In each pair the second number is 7 times the first: 59 × 7 = 413, 61 × 7 = 427, 47 × 7 = 329. But 37 × 7 = 259, not 269.

Q79DSSSB TGT Computer Science, 25 Jun 2023, Shift 2 (12:30 PM)
What approximate value should come in place of the question mark (?) in the following equation? 78.69 + 29.19 × 13.17 − 45.67 ÷ 22.89 = ?
  1. A378
  2. B567
  3. C356
  4. D454
Show answerHide answer

Correct answer: (D) 454

Explanation

78.69 + (29.19 × 13.17 ≈ 384.4) − (45.67 ÷ 22.89 ≈ 2) ≈ 461, and 454 is the closest option.

Q80DSSSB TGT Computer Science, 25 Jun 2023, Shift 2 (12:30 PM)
Select the option where the second word is related to the first word in the same way as the second word is related to the first word in the given pair. IMAGINE : BLJGFMJ
  1. ACOLLEGE: NNDLFFF
  2. BSUCCESS: DTTCTRE
  3. CCOMMAND: NND.MENB
  4. DFAILURE: JZFLFQV
Show answerHide answer

Correct answer: (A) COLLEGE: NNDLFFF

Explanation

Rule: reverse the first three letters and the last three letters, then apply +1, −1, +1 to each group, keeping the middle letter. COLLEGE gives COL → LOC → MND, L, EGE → FFF, i.e. MNDLFFF. The keyed option (A) follows this rule; its first letter appears to be a typo. The other options each break the rule.

Q81DSSSB TGT Computer Science, 25 Jun 2023, Shift 2 (12:30 PM)
In a row of 50 students, Kajal is 8th to the left of Rashmi. If Rashmi is 25th from the left end of the row, what will be the position of Kajal from the right end of the row?
  1. A33rd
  2. B34th
  3. C32nd
  4. D35th
Show answerHide answer

Correct answer: (B) 34th

Explanation

Kajal is 25 − 8 = 17th from the left, so from the right she is 50 − 17 + 1 = 34th.

Q82DSSSB TGT Computer Science, 25 Jun 2023, Shift 2 (12:30 PM)
A question is given, followed by two statements labelled I and II. Identify which of the statements is/are sufficient to answer the question. Question: What will be the code of 'HUMAN' in the same language? Statements: I. 'FAHAD' is coded as '61814'. II. 'WATER' is coded as '23120518'.
  1. AInformation in both the statements I and II is necessary to answer the question.
  2. BInformation in statement I alone is sufficient to answer the question, while information in statement II alone is not sufficient to answer the question.
  3. CInformation in either statement I alone or statement II alone is sufficient to answer the question.
  4. DInformation in statement II alone is sufficient to answer the question, while information in statement I alone is not sufficient to answer the question.
Show answerHide answer

Correct answer: (C) Information in either statement I alone or statement II alone is sufficient to answer the question.

Explanation

Both statements show the same rule: each letter is written as its alphabet position (F=6, A=1, H=8 ...; W=23, A=1, T=20 ...). Either statement alone gives HUMAN = 82113114.

Q83DSSSB TGT Computer Science, 25 Jun 2023, Shift 2 (12:30 PM)
Four letter-cluster pairs have been given, out of which three are alike in some manner and one is different. Select the one that is different.
  1. AIMAGINE : BLJGFMJ
  2. BSUCCESS : DTTCTRF
  3. CCOMMAND : NNDMENB
  4. DCOLLEGE : MNDLFFF
Show answerHide answer

Correct answer: (C) COMMAND : NNDMENB

Explanation

Rule: reverse the first three letters and the last three, apply +1, −1, +1 to each group, and keep the middle letter. COMMAND should give NND M EMB = NNDMEMB, but the pair shows NNDMENB. The other three pairs follow the rule.

Q84DSSSB TGT Computer Science, 25 Jun 2023, Shift 2 (12:30 PM)
Select the correct combination of mathematical signs that can sequentially replace the * signs and balance the given equation. 34 * 69 * 23 * 37 * 23 * 882
  1. A×, +, ÷, −, =
  2. B+, ÷, ×, −, =
  3. C−, ÷, +, ×, =
  4. D÷, +, ×, −, =
Show answerHide answer

Correct answer: (C) −, ÷, +, ×, =

Explanation

34 − 69 ÷ 23 + 37 × 23 = 34 − 3 + 851 = 882, so the equation balances.

Q85DSSSB TGT Computer Science, 25 Jun 2023, Shift 2 (12:30 PM)
Four letter-cluster pairs have been given, out of which three are alike in some manner and one is different. Select the one that is different.
  1. AHOTELS : PIFUTM
  2. BMATTER : BNUUSF
  3. CACTING : DBJUHO
  4. DACTUAL : DBUVMB
Show answerHide answer

Correct answer: (D) ACTUAL : DBUVMB

Explanation

Rule: shift each letter +1, then swap the letters in each pair. ACTUAL → BDUVBM → DBVUMB, but the given code is DBUVMB. HOTELS → PIFUTM, MATTER → BNUUSF and ACTING → DBJUHO follow the rule.

Q86DSSSB TGT Computer Science, 25 Jun 2023, Shift 2 (12:30 PM)
Four number-pairs have been given, out of which three are alike in some manner and one is different. Select the one that is different.
  1. A19-59
  2. B17-53
  3. C29-91
  4. D23-71
Show answerHide answer

Correct answer: (C) 29-91

Explanation

In each pair, second = 3 × first + 2: 19 → 59, 17 → 53, 23 → 71. For 29, 3 × 29 + 2 = 89, not 91.

Q87DSSSB TGT Computer Science, 25 Jun 2023, Shift 2 (12:30 PM)
There are six persons, P, Q, R, S, T and U. R is lighter than P but heavier than Q. S is lighter than U. T is heavier than P. U is lighter than Q. Who is the heaviest among them all?
  1. AP
  2. BR
  3. CT
  4. DQ
Show answerHide answer

Correct answer: (C) T

Explanation

The order of weight is T > P > R > Q > U > S, so T is the heaviest.

How to use these DSSSB TGT / PGT Reasoning questions

Every question here was asked in a real DSSSB TGT / PGT paper; the paper and shift are shown on the card, and the number opens the question on its own page. Try each one before tapping Show answer, then attempt the full DSSSB TGT / PGT papers as timed tests to check your speed under exam conditions.

More DSSSB TGT / PGT subjects