Question
Read the given statements and conclusions carefully.
Assuming that the information given in the statements is true, even if it appears to be at variance with commonly known facts, decide which of the given conclusions logically follow(s) from the statements. Statements: All cups are plate. All plate are saucers. Some spoons are saucers. Conclusions: I. Some saucers are cups. II. Some spoons are plate. III. All plate are cups.Solution
All cups are plate (A) + All plate are saucers (A) β All cups are saucers (A) β Conversion β Some saucers are cups. (I). Hence conclusion I follows.
Some spoons are saucers (I) + [All plate are saucers (A) β Conversion] β Some saucers are plate (I) β No conclusion. Hence conclusion II does not follow.
All cups are plate (A) β Conversion β Some plate are cups. (I). Hence conclusion III does not follow.
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