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Question

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.

Statements:           Some fox are wolf.

All wolf are deer.

                                 No deer is a bear.

Conclusions:         I. Some fox are deer.

                                II. Some fox are not bear.

                                III. Some wolf are not bear.

A Only III follows Correct Answer Incorrect Answer
B Only I and III follows Correct Answer Incorrect Answer
C Only II and III follows Correct Answer Incorrect Answer
D All I,II and III follows Correct Answer Incorrect Answer

Solution

Some fox are wolf (I) + All wolf are deer (A) ⇒ Some fox are deer (I) + No deer is a bear(E) ⇒ Some fox are not bear(O) . Hence, conclusion I and II follows. All wolf are deer(A) + No deer is a bear(E) ⇒ No cup is a bear ⇒ Conversion ⇒ Some wolf are not bear(O). Hence, conclusion III follows.

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