Two statements in the following questions, followed by two conclusions I and II. Read the conclusion and decide most suitable answer.
Statements:
All horses are goats.
No goat is a donkey.
Conclusions:
(I) No horse is a donkey.
(II) At least some goats are horses.
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → If both conclusion I and II follows.
Draw the statements as circles: “All horses are goats” puts Horses inside Goats, and “No goat is a donkey” keeps Goats and Donkeys apart.
Conclusion (I): No horse is a donkey. Follows. Horses lie wholly inside Goats, and no goat is a donkey, so no horse can be a donkey.
Conclusion (II): At least some goats are horses. Follows. Since every horse is a goat, those goats are horses; “All H are G” always gives “Some G are H”.