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:
I. No A is B.
II. All C are D.
III. Some C are B.
Conclusions:
I. Some D are B.
II. Some B are C.
III. All C are B.
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. Both conclusions I and II follow.
| Understanding | |
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The least possible Venn diagram is:
Conclusions: I. Some D are B → True (All C are part of D, and Some B are C, so the part of D which is C is also B). II. Some B are C → True (As Some C are B is already given). III. All C are B → False (This is possible but not definite). Hence, Both conclusions I and II follow. |
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