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. Statements: All Umbrella is Cloud. Some Cloud is Rainbow. No Rainbow is Rain. Conclusions: I. Some Cloud is not Rain. II. Some Rain is Umbrella. III. All Cloud is Umbrella.Solution
Some Cloud is Rainbow (I) + No Rainbow is Rain (E) → Some Cloud is not Rain (O). Hence conclusion I follows but conclusion II does not follow.All Umbrella is Cloud (A) → Conversion → Some Cloud is Umbrella (I). Hence conclusion III does not follow.
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