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Q.
Statements: All soaps are detergents.
All detergents are powerders.
Conclusion: I. All soaps are powerders.
II. Some detergents are soaps.
III. Some powerders are soaps.
IV. Some powerders are detergents.
Answer & ExplanationOption: [D]
The area for soaps lies entirely within the area for powder. So, conclusion I follows. Detergents and soaps have a common area, powders and soaps have a common area and powders and detergents have a common area, So, conclusions II, III and IV also follow. Thus all the conclusions follow
