In the following question three or four statements are given followed by two or three Conclusions I and II. You have to consider the statements to be true, even if it seems to be at variance from commonly known facts. You are to decide which of the given conclusions can definitely be drawn from the given statements Indicate your answer.

Statements:

Some fishes are crocodiles

Some crocodiles are snakes

No snake is snail

All snails are tortoises

Conclusions :

I. Some snakes are fish

II. Some fishes are tortoise

Answer : Option C

Explanation :

First and second Premises are Particular Affirmative (I – type). Third Premise is Universal Negative (E – type). Fourth Premise is Universal Affirmative (A – type). Some crocodiles are snakes. No snake is snail.

I + E ⇒ O – type of Conclusion

’’Some crocodiles are not snails’’.

No snake is snail.

All snail are tortoises.

$mathrm{E}+mathrm{A} Rightarrow mathrm{O}_{1}$ – type of Conclusion

’’Some tortoises are not snakes’’.