IBPS Syllogism 4

Question 1

Statements: Some files are folders. All folders are drives. No drive is a disk. Conclusions: I. Some files are not disks. II. No folder is a disk. Which conclusion(s) follow?

Accepted Answer

Both I and II follow

Answer

All folders are drives and no drive is a disk, so no folder is a disk (II follows); some files are folders → drives, and no drive is a disk, so some files are not disks (I follows).

Question 2

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

Accepted Answer

Only II follows

Answer

Some vehicles are aeroplanes, so by conversion some aeroplanes are vehicles (II follows); the vehicles that are aeroplanes may not be trains, so Conclusion I does not necessarily follow.

Question 3

Statements: No mango is a banana. Some bananas are oranges. Conclusions: I. Some oranges are not mangoes. II. No mango is an orange. Which conclusion(s) follow?

Accepted Answer

Only I follows

Answer

Some bananas that are oranges are definitely not mangoes (since no mango is a banana), so Conclusion I follows; it is possible that some mangoes are oranges through a path not involving bananas, so Conclusion II does not follow.

Question 4

Statements: All coins are notes. All notes are cheques. All cheques are drafts. Conclusions: I. All coins are drafts. II. All notes are drafts. Which conclusion(s) follow?

Accepted Answer

Both I and II follow

Answer

Coins → notes → cheques → drafts, so all coins are drafts (I follows); notes → cheques → drafts, so all notes are drafts (II follows).

Question 5

Statements: Some kings are queens. No queen is a jack. Conclusions: I. Some kings are not jacks. II. All jacks are kings. Which conclusion(s) follow?

Accepted Answer

Only I follows

Answer

Some kings are queens and no queen is a jack, so those king-queens are not jacks, meaning some kings are not jacks (I follows); there is no basis to conclude all jacks are kings (II does not follow).

IBPS - Institute of Banking Personnel Selection Practice Test

IBPS - Institute of Banking Personnel Selection Practice Test

IBPS Syllogism 4