IIFT 2012 Question Paper Question 114

Question 114

Statement 1: All chickens are birds.
Statement 2: Some chickens are hens.
Statement 3: Female birds lay eggs.
If the above statement are facts, then which of the following must also be a fact?
I. All birds lay eggs.
II. Hens are birds.
III. Some chickens are not hens.

Solution

No relation can be established between birds and eggs and thus, 1 is not a fact.

All chickens are birds and Some chickens are hens. There might be a case where some hens are not birds.
Thus, 2 is not a fact.
Some chickens are hens. This may mean all the chickens are hens. Thus, 3 is also not a fact.
Hence, option D is the correct answer.




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