All Courses

Home

Verbal Reasoning

Syllogism

Read the given statement(s) and conclusions carefully. Assuming that the information given in the statements is true, even if it appears to be at vari

Question

Read the given statement(s) and conclusions carefully. Assuming that the information given in the statements is true, even if it appears to be at variance with commonly known facts, decide which or the given conclusions logically follow(s) from the statements(s).
Statements:
Some bulbs are switches.
No switch is a vase.
All fans are switches.
Conclusions:
I. Some bulbs being fans is a possibility.
II. No fan is a vase.
III. All switches are fans.
IV. No bulb is a vase.

Only Conclusions II and III follow

Only Conclusions I and II follow

Only Conclusions I, II and IV follow

Only Conclusion I follow.

Solution

Correct option is B

I. Some bulbs being fans is a possibility.

This conclusion is logically possible. Since all fans are switches, and some bulbs are switches, it is possible that some bulbs could be fans. Therefore, conclusion I follows.

II. No fan is a vase.

Given that no switch is a vase and all fans are switches, it follows that no fan can be a vase. Therefore, conclusion II follows.

III. All switches are fans.

This conclusion does not logically follow. The statement "All fans are switches" does not imply that all switches are fans. There could be switches that are not fans. Therefore, conclusion III does not follow.

IV. No bulb is a vase.

This conclusion does not logically follow from the given statements. There is no direct information provided about the relationship between bulbs and vases, so this conclusion cannot be inferred. Therefore, conclusion IV does not follow.