Question
Statements: Some plates are spoons. All
spoons are cups. No cup is a fork. Conclusions: I. Some plates are cups. II. Some plates are not forks. III. Some spoons are not forks. In each question below are given three statements followed by three conclusions numbered I, II and III. You have to take the two given statements to be true even if they seem to be at variance with commonly known facts and then decide which of the given conclusions logically follows from the three given statements, disregarding commonly known facts.Solution
Some plates are spoons (I) + All spoons are cups (A) ⇒ Some plates are cups (I) + No cup is a fork(E) ⇒ Some plates are not forks(O) . Hence, conclusion I and II follow. All spoons are cups(A) + No cup is a fork(E) ⇒ No spoon is a fork ⇒ Conversion ⇒ Some spoons are not forks(O). Hence, conclusion III follows.
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