SYLLOGISM – Railway Reasoning part – 5

Total Questions: 50

21. Which of the conclusions follows from the given statements? [RRB NTPC 27/01/2021 (Evening)]

Statements :
All kings have grey hair. Some knights
become kings
Conclusions :
I. All knights have grey hair.
II. All grey haired knights are kings.

Correct Answer: (a) Neither conclusion I nor II follows
Solution:

22. Which of the conclusions follows from the given statements? [RRB NTPC 28/01/2021 (Morning)]

Statements :
Some beds are side tables.
All side tables are lamps.
Conclusions :
1. All beds are side tables.
2. Some lamps are beds.
3. Some lamps are side tables.
4. All side tables are beds.

Correct Answer: (b) Both conclusions 2 and 3 follow.
Solution: From the above diagram, we can see that both conclusions 2 and 3 follow.

23. Which of the conclusions follows from the given statements? [RRB NTPC 28/01/2021 (Evening)]

Statements:
All mouses are keyboards.
Some keyboards are keyless.
Conclusions :
1. Some keyless are mouses.
2. All keyless are keyboards.

Correct Answer: (c) Neither conclusion 1 or 2 follows
Solution:

Neither conclusion 1 or 2 follows

24. Which of the conclusions follows from the given statements? [RRB NTPC 28/01/2021 (Evening)]

Statements :
All songs are old
Some old are sweet
Conclusions :
1. Some songs are sweet.
2. All songs are sweet.
3. Some sweets are old.
4. No old is a song.

Correct Answer: (c) 3
Solution:

Some sweets are old.

25. Which of the conclusions follows from the given statements? [RRB NTPC 29/01/2021 (Morning)]

Statements :
All remotes are infrared.
All infrared are gamma.
Conclusions :
1. All gamma are remote.
2. Some gamma are remote.
3. No remote are gamma
4. Some remote are not infrared.

Correct Answer: (b) Only conclusion 2 follows
Solution:From the above diagram it is clear that Some gamma are remote. Only conclusion 2 follows.

26. Which of the conclusions follows from the given statements? [RRB NTPC 29/01/2021 (Morning)]

Statements :
Some players are fit.
All fit are healthy.
Conclusion :
1. No healthy are players.
2. All fit are players.
3. Some healthy are fit.
4. All healthy are fit.

Correct Answer: (c) Only conclusion 3 follows.
Solution:From the above diagram we can see that only conclusion 3 follows.

27. Which of the conclusions follows from the given statements? [RRB NTPC 30/01/2021 (Morning)]

Statements :
Some flats are expensive.
Some expensive are villas.
Conclusions :
1. Some villas are expensive
2. No flat is Villa.
3. Some villas are flats.
4. All villas are expensive.

Correct Answer: (a) Only conclusion 1 follows.
Solution:From the above diagram it is clear that some villas are expensive.

28. Which of the conclusions follows from the given statements? [RRB NTPC 30/01/2021 (Evening)]

Statement :
Some students are bright
All bright are successful.
Conclusions:
I. Some students are successful.
II. Some successful people are students.
III. All successful people are students.

Correct Answer: (b) Both conclusions I and II follow
Solution:

Both conclusions I and II follow

29. Answer the given statements from the given option : [RRB NTPC 31/01/2021 (Morning)]

Statements:
1. Some antelopes are parasites.
2. All the parasites are avocados

Correct Answer: (c) Some antelopes are avocados
Solution:From the above diagram it is clear that some antelopes are avocados.

30. Which of the conclusions follows from the given statements? [RRB NTPC 31/01/2021 (Evening)]

Statements :
All D are E
Some E are F
Conclusions :
I. All D are F
II. Some F are D
III. Some F are E

Correct Answer: (c) Only conclusion III follows.
Solution:

From the above diagram it is clear that Some F are E.