Question
Statements: Some machine are tool. All tool
are screw. No screw is nut. Some machine are ladder. Conclusions: I. Some ladder are tool. II. Some machine are screw. III. No tool is nut. In the question below there are three statements followed by three conclusions I, II and III. You have to take the three given statements to be true even if they seem to be at variance from commonly known facts and then decide which of the given conclusions logically follows from the three statements disregarding commonly known facts.Solution
Some machine are tool (I) → Conversion → Some tool are machine (I) + Some machine are ladder (I) → No conclusion. Hence conclusion I does not follow.
Some machine are tool (I) + All tool are screw (A) → Some machine are screw (I). Hence conclusion II follows.
All tool are screw (A) + No screw is nut (E) → No tool is nut (E). Hence conclusion III follows.
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