Question

Statements : 1. All benches are desks.
2. Some desks are roads.
3. All roads are pillars.
Conclusions: I. Some pillars are benches.
II. Some pillars are desks.
III. Some roads are benches.
IV. No pillar is bench.

• A. None follows
• B. Only either I or IV, and III follow
• C. Only either I or IV follows
• D. Only either I or IV, and II follow

Answer 1

The correct option is D Only either I or IV, and II follow

Statements : 1. All benches are desks.
2. Some desks are roads.
3. All roads are pillars.
Conclusions:
I. Some pillars are benches. All benches are desks and Some desks are roads. All roads are pillars. So some pillars are desks, but may not be pillars.
II. Some pillars are desks. True, Some desks are roads. All roads are pillars. So some pillars are desks.
III. Some roads are benches. False, some roads are desks and some desks are benches, but roads may not be benches.
IV. No pillar is bench. All benches are desks and Some desks are roads. All roads are pillars. So some pillars are desks, but may not be pillars.
D