Question

In each of the following questions, two/three statements are given followed by two conclusions numbered I and II. You have to take the given statements to be true even if they seem to be at variance from commonly known facts. Read both the conclusions and then decide which of the given conclusions logically and definitely follows from the given statements disregarding commonly known facts.

Statements:-
Some jobs are vacancies.
All jobs are works.
No work is a trade.
All professions are trades.

Conclusions:-
I. At least some works are jobs.
II. No vacancy is a trade.
III. No profession is a work.
IV. At least some worked are professions.

• A. All I, II, III and IV follow
• B. II, III and IV follow
• C. I and IV follow
• D. I and III follow
• E. None of the above

Answer 1

The correct option is D I and III follow

All jobs are works $\to$ implication $\to$ some works are jobs. Hence, conclusion I follows.
Again some jobs are vacancies $\to$ conversion $\to$ some vacancies are jobs + All jobs are works (A) = I + A = I = Some vacancies are works (I) + No work is a trade (E) = I + E = O = Some vacancies are not trades. Hence, conclusion II does not follow.

Now, No work is a trade $\to$ conversion $\to$ No trade is a work.
Again, All professions are trades (A) + No trade is a work (E) = A + E = E = No profession is a work. Hence, conclusion III follows, But conclusion IV does not follow.