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Q.

        Statements:	All scientists are fools.
			All fools are illiterate.
                
	Conclusion: 	I. All scientists are illiterate
			II. All illiterate are scientists.
			III. All illiterates are fools.
			IV. Some illiterates would be scientiste.
        

A Only i and iv follow
B Only ii follows
C Only iii and iv follow
D Only iv follows
Answer & Explanation
Option: [A]

The area for scientists lies entirely in the area for illiterates. So, conclusion i follows. The area I does not lie completely within S or entirely within F. So, conclusions ii and iii cannot follow. Since illiterates and scientists have a common area, conclusion iv follows. Thus, only conclusion i and iv follow.

syllogism-aptitude-test-1 - GkSeries

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