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Question

Three statements are given, followed by three conclusions numbered I, II and III. Assuming the statements to be true, even if they seem to be at variance with commonly known facts, decide which of the conclusions logically follow(s) from the statements.

Statement:

Some Fighter are Trainers.

All Trainers are Pilot.

No Trainer is a Soldier.

Conclusions:

(I) Some Pilot are not Soldier.

(II) All Soldier being Fighter is a possibility.

(III) No Soldier is Fighter

A Only conclusion III follows. Correct Answer Incorrect Answer
B Only conclusions I and II follow. Correct Answer Incorrect Answer
C Only conclusions I and III follow. Correct Answer Incorrect Answer
D Only conclusion I follows. Correct Answer Incorrect Answer

Solution

All Trainers are Pilot (A) → Conversion → Some Pilot are Trainers (I) + No Trainer is a Soldier (E) → Some Pilot are not Stine (O). Hence conclusion I follows. Some Fighter are Trainers (I) + No Trainer is a Soldier (E) → Some Fighter are not Soldier (O) → Probable conclusion → All Soldier may be Fighter (A). Hence conclusion II follows but conclusion III does not follow.

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