Deductive and Inductive Reasoning - Logic - General Aptitude (GA) Previous Year Questions

1

2014 · General Aptitude (GA) · Logic · Deductive and Inductive Reasoning

Mechanical Engineering (ME) 2014 [Session 3]

Read the statements:
All women are entrepreneurs.
Some women are doctors.
Which of the following conclusions can be logically inferred from the above statements?

A

All women are doctors

B

All doctors are entrepreneurs

C

All entrepreneurs are women

D

Some entrepreneurs are doctors

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2

2014 · General Aptitude (GA) · Logic · Deductive and Inductive Reasoning

Mechanical Engineering (ME) 2014 [Session 3]

For submitting tax returns, all resident males with annual income below Rs 10 lakh should fill up Form P and all resident females with income below Rs 8 lakh should fill up Form Q. All people with incomes above Rs 10 lakh should fill up Form R, except non residents with income above Rs 15 lakhs, who should fill up Form S. All others should fill form T. An example of a person who should fill Form T is

A

a resident male with annual income Rs 9 lakh

B

a resident female with annual income Rs 9 lakh

C

a non-resident male with annual income Rs 16 lakh

D

a non-resident female with annual income Rs 16 lakh

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3

2014 · General Aptitude (GA) · Logic · Deductive and Inductive Reasoning

Mechanical Engineering (ME) 2014 [Session 4]

Lights of four colors (red, blue, green, yellow) are hung on a ladder. On every step of the ladder there are two lights. If one of the lights is red, the other light on that step will always be blue. If one of the lights is on a step is green, the other light on that step will always be yellow. Which of the following statements is not necessarily correct?

A

The number of red lights is equal to the number of blue lights

B

The number of green lights is equal to the number of yellow lights

C

The sum of the red and green lights is equal to the sum of the yellow and blue lights

D

The sum of the red and blue lights is equal to the sum of the green and yellow lights

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4

2015 · General Aptitude (GA) · Logic · Deductive and Inductive Reasoning

Mechanical Engineering (ME) 2015 [Session 1]

Given below are two statements followed by two conclusions. Assuming these statements to be true, decide which one logically follows.
Statements:
I. All film stars are playback singers.
II. All film directors are film stars.

Conclusions:
I. All film directors are playback singers.
II. Some film stars are film directors.

A

Only conclusion I follows.

B

Only conclusion II follows.

C

Neither conclusion I nor II follows.

D

Both conclusions I and II follow.

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5

2015 · General Aptitude (GA) · Logic · Deductive and Inductive Reasoning

Mechanical Engineering (ME) 2015 [Session 1]

Lamenting the gradual sidelining of the arts in school curricula, a group of prominent artists wrote to the Chief Minister last year, asking him to allocate more funds to support arts education in schools. However, no such increase has been announced in this year’s Budget. The artists expressed their deep anguish at their request not being approved, but many of them remain optimistic about funding in the future.

Which of the statement(s) below is/are logically valid and can be inferred from the above statements?

(i) The artists expected funding for the arts to increase this year.
(ii) The Chief Minister was receptive to the idea of increasing funding for the arts.
(iii) The Chief Minister is a prominent artist.
(iv) Schools are giving less importance to arts education nowadays.

A

(ii) and (iv)

B

(i) and (iv)

C

(i), (ii) and (iv)

D

(i) and (iii)

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6

2015 · General Aptitude (GA) · Logic · Deductive and Inductive Reasoning

Mechanical Engineering (ME) 2015 [Session 3]

Tanya is older than Eric.
Cliff is older than Tanya.
Eric is older than Cliff

If the first two statements are true, then the third statement is:

A

True

B

False

C

Uncertain

D

Data insufficient

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7

2015 · General Aptitude (GA) · Logic · Deductive and Inductive Reasoning

Mechanical Engineering (ME) 2015 [Session 3]

Given below are two statements followed by two conclusions. Assuming these statements to be true, decide which one logically follows.

Statements:
I. No manager is a leader.
II. All leaders are executives.

Conclusions:
I. No manager is an executive.
II. No executive is a manager.

A

Only conclusion I follows.

B

Only conclusion II follows.

C

Neither conclusion I nor II follows.

D

Both conclusions I and II follow.

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8

2016 · General Aptitude (GA) · Logic · Deductive and Inductive Reasoning

Mechanical Engineering (ME) 2016 [Session 1]

Leela is older than her cousin Pavithra. Pavithra’s brother Shiva is older than Leela. When Pavithra and Shiva are visiting Leela, all three like to play chess. Pavithra wins more often than Leela does.
Which one of the following statements must be TRUE based on the above?

A

When Shiva plays chess with Leela and Pavithra, he often loses.

B

Leela is the oldest of the three.

C

Shiva is a better chess player than Pavithra.

D

Pavithra is the youngest of the three.

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9

2016 · General Aptitude (GA) · Logic · Deductive and Inductive Reasoning

Mechanical Engineering (ME) 2016 [Session 2]

Fact: If it rains, then the field is wet. Read the following statements: (i) It rains (ii) The field is not wet (iii) The field is wet (iv) It did not rain Which one of the options given below is NOT logically possible, based on the given fact?

A

If (iii), then (iv).

B

If (i), then (iii).

C

If (i), then (ii).

D

If (ii), then (iv).

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10

2016 · General Aptitude (GA) · Logic · Deductive and Inductive Reasoning

Mechanical Engineering (ME) 2016 [Session 2]

A smart city integrates all modes of transport, uses clean energy and promotes sustainable use of resources. It also uses technology to ensure safety and security of the city, something which critics argue, will lead to a surveillance state. Which of the following can be logically inferred from the above paragraph? (i) All smart cities encourage the formation of surveillance states. (ii) Surveillance is an integral part of a smart city. (iii) Sustainability and surveillance go hand in hand in a smart city. (iv) There is a perception that smart cities promote surveillance.

A

(i) and (iv) only

B

(ii) and (iii) only

C

(iv) only

D

(i) only

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11

2016 · General Aptitude (GA) · Logic · Deductive and Inductive Reasoning

Mechanical Engineering (ME) 2016 [Session 3]

Social science disciplines were in existence in an amorphous form until the colonial period when they were institutionalized. In varying degrees, they were intended to further the colonial interest. In the time of globalization and the economic rise of postcolonial countries like India, conventional ways of knowledge production have become obsolete.
Which of the following can be logically inferred from the above statements?
(i) Social science disciplines have become obsolete.
(ii) Social science disciplines had a pre-colonial origin.
(iii) Social science disciplines always promote colonialism.
(iv) Social science must maintain disciplinary boundaries.

A

(ii) only

B

(i) and (iii) only

C

(ii) and (iv) only

D

(iii) and (iv) only

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12

2018 · General Aptitude (GA) · Logic · Deductive and Inductive Reasoning

Mechanical Engineering (ME) 2018 [Session 1]

Consider the following three statements:
(i) Some roses are red.
(ii) All red flowers fade quickly.
(iii) Some roses fade quickly.
Which of the following statements can be logically inferred from the above statements?

A

If (i) is true and (ii) is false, then (iii) is false.

B

If (i) is true and (ii) is false, then (iii) is true.

C

If (i) and (ii) are true, then (iii) is true.

D

If (i) and (ii) are false, then (iii) is false.

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13

2018 · General Aptitude (GA) · Logic · Deductive and Inductive Reasoning

Mechanical Engineering (ME) 2018 [Session 2]

A house has a number which needs to be identified. The following three statements are given that can help in identifying the house number.
i. If the house number is a multiple of 3, then it is a number from 50 to 59.
ii. If the house number is NOT a multiple of 4, then it is a number from 60 to 69.
iii. If the house number is NOT a multiple of 6, then it is a number from 70 to 79.
What is the house number?

A

54

B

65

C

66

D

76

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14

2019 · General Aptitude (GA) · Logic · Deductive and Inductive Reasoning

Mechanical Engineering (ME) 2019 [Session 1]

Under a certain legal system, prisoners are allowed to make one statement. If their statement turns out to be true then they are hanged. If the statement turns out to be false then they are shot. One prisoner made a statement and the judge had no option but to set him free. Which one of the following could be that statement?

A

I did not commit the crime

B

I committed the crime

C

I will be shot

D

You committed the crime

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15

2021 · General Aptitude (GA) · Logic · Deductive and Inductive Reasoning

Mechanical Engineering (ME) 2021 [Session 1]

"The increased consumption of leafy vegetables in the recent months is a clear indication that the people in the state have begun to lead a healthy lifestyle"
Which of the following can be logically inferred from the information presented in the above statement?

A

The people in the state did not consume leafy vegetables earlier.

B

Consumption of leafy vegetables may not be the only indicator of healthy lifestyle.

C

Leading a healthy lifestyle is related to a diet with leafy vegetables.

D

The people in the state have increased awareness of health hazards causing by consumption of junk foods.

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16

2023 · General Aptitude (GA) · Logic · Deductive and Inductive Reasoning

Mechanical Engineering (ME) 2023

The symbols ○, *, △, and □ are to be filled, one in each box, as shown below.

The rules for filling in the four symbols are as follows.
1) Every row and every column must contain each of the four symbols.
2) Every 2×2 square delineated by bold lines must contain each of the four symbols.

Which symbol will occupy the box marked with ‘?’ in the partially filled figure?

A

○

B

*

C

△

D

□

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17

2023 · General Aptitude (GA) · Logic · Deductive and Inductive Reasoning

Mechanical Engineering (ME) 2023

In a recently held parent-teacher meeting, the teachers had very few complaints about Ravi. After all, Ravi was a hardworking and kind student. Incidentally, almost all of Ravi’s friends at school were hardworking and kind too. But the teachers drew attention to Ravi’s complete lack of interest in sports. The teachers believed that, along with some of his friends who showed similar disinterest in sports, Ravi needed to engage in some sports for his overall development.
Based only on the information provided above, which one of the following statements can be logically inferred with certainty?

A

All of Ravi’s friends are hardworking and kind.

B

No one who is not a friend of Ravi is hardworking and kind.

C

None of Ravi’s friends are interested in sports.

D

Some of Ravi’s friends are hardworking and kind.

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18

2026 · General Aptitude (GA) · Logic · Deductive and Inductive Reasoning

Mechanical Engineering (ME) 2026

‘All the mangoes in the basket are good.’
If the above statement is false, then which one of the following statements is necessarily true?

A

All the mangoes in the basket are not good.

B

No mango in the basket is good.

C

In the basket, some of the mangoes are good and some are not good.

D

There exists at least one mango in the basket that is not good.

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19

2026 · General Aptitude (GA) · Logic · Deductive and Inductive Reasoning

Mechanical Engineering (ME) 2026

The Roman senator Meritorius, his brother, his son, and his daughter have varying oratory skill levels. They are seated in rows and columns as shown in the figure with exactly one person sitting in each box. It is known that
(i) Meritorius’ daughter and his brother are seated in the same column.
(ii) His son is seated diagonally across the sibling of the worst orator.
(iii) The best and worst orators are seated in the same row.
Who is the best orator?

Seating Arrangement
Column 1    Column 2
Row 1       [box]      [box]
Row 2       [box]      [box]

A

Meritorius

B

Meritorius’ brother

C

Meritorius’ son

D

Meritorius’ daughter

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