IBPS Syllogism 2

Question 1

Statements: All pens are books. Some books are chairs. Conclusions: I. Some pens are chairs. II. Some chairs are books. Which conclusion(s) follow?

Accepted Answer

Only II follows

Answer

Some chairs are books follows directly from 'Some books are chairs'; 'Some pens are chairs' cannot be established without a direct link.

Question 2

Statements: No cat is a dog. All dogs are animals. Conclusions: I. No cat is an animal. II. Some animals are not cats. Which conclusion(s) follow?

Accepted Answer

Only II follows

Answer

Since all dogs are animals and no cat is a dog, some animals (dogs) are definitely not cats, so Conclusion II follows; Conclusion I does not necessarily follow.

Question 3

Statements: All flowers are trees. All trees are roots. Conclusions: I. All flowers are roots. II. All roots are flowers. Which conclusion(s) follow?

Accepted Answer

Only I follows

Answer

All flowers → trees → roots gives 'All flowers are roots'; reversing a universal affirmative does not give a universal affirmative, so Conclusion II does not follow.

Question 4

Statements: Some stars are moons. No moon is a planet. Conclusions: I. Some stars are not planets. II. No star is a planet. Which conclusion(s) follow?

Accepted Answer

Only I follows

Answer

Some stars that are moons cannot be planets (since no moon is a planet), so Conclusion I follows; but some stars may not be moons at all and could be planets, so Conclusion II does not follow.

Question 5

Statements: All cars are buses. Some buses are trains. Conclusions: I. Some trains are cars. II. Some buses are cars. Which conclusion(s) follow?

Accepted Answer

Only II follows

Answer

Since all cars are buses, by conversion, some buses are cars (Conclusion II follows); there is no direct link between trains and cars, so Conclusion I does not follow.

IBPS - Institute of Banking Personnel Selection Practice Test

IBPS - Institute of Banking Personnel Selection Practice Test

IBPS Syllogism 2