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 from the statements.
Statements:
No bird is a parrot.
Some pigeons are birds.
All crows are parrots.
Conclusions:
I. No bird is a pigeon.
II. All parrots are definitely not birds.
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. Only conclusion II follows.
The least possible venn diagram is:

Conclusions:
I. No bird is a pigeon.→ Does not follow (As some pigeons are birds so no bird is a pigeon does not follow)
II. All parrots are definitely not birds. → Follow (As no birds is a parrot so all parrots are definitely not birds is true)