(Study Material) RRB NTPC (Tier -2) Exam (Reasoning) - Syllogism

(Study Material) RRB NTPC (Tier -2) Exam (Reasoning) - Syllogism

Directions (Q. Nos. 01 to 05) Every question below has a few statement, followed by four conclusions numbered I, II, III and IV. You have to consider every given statement as true, even if it goes not conform to the well known facts. Read the conclusions and then decide which of the conclusions can be logically derived.

1. Statement:

I. Some apples are watermelons.
II. All watermelons are fresh.
III. Some potatoes are fresh.

Conclusions

I. Some apples are fresh.
II. Some potatoes are apples.
III. Some watermelons are potatoes.
IV. Some watermelons are apples.

(a) Only I follows
(b) Only I and II follow
(c) Only I and IV follow
(d) Either II or III and I follow

2. Statement:

I. All pens are pencils.
II. Some pens are erasers.
III. Some erasers are clips.

Conclusions

I. Some clips are pens.
II. No clip is a pen.
III. Some erasers are pencils.
IV. No eraser is a pencil.

(a) Only I and II follow
(b) III and either I or II follow
(c) Only III follows
(d) Either I or II, and either III or IV

3. Statement:

I. Some books are papers.
II. Some papers are plastic
III. No plastic is black.

Conclusions

I. Some papers are not black.
II. All papers are not black.
III. Some papers are black.
IV. Some books are black.

(a) Only I follows
(b) Either II or III follows
(c) Only I and IV follow
(d) Only I, III and IV follow

4. Statement:

I. Some doors are windows.
II. All windows are black.
III. Some black are brown.

Conclusions

I. Some windows are brown.
II. All doors are black.
III. Some doors are black.
IV. No window is brown.

(a) Only III follows
(b) Either I or IV and III follow
(c) Only II follows
(d) Only IV follows

5. Statement:

I. All teachers are doctors.
II. All doctors are engineers.
III. All engineers are typists.

Conclusions

I. Some typists are teachers.
II. All doctors are typists.
III. Some engineers are teachers.
IV. All doctors are teachers.

(a) Only I and II follow
(b) Only I and III follow
(c) Either II or IV follows
(d) None of these

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