Three statements are given, followed by four conclusions numbered I, II, III, and IV.
Assuming the statements to be true, even if they seem to be at variance with commonly known facts, decide which of the conclusions logically follow from the statements.
Statements:
Some bulbs are tube lights.
No tubelight is switched on.
No bulb is a watch.
Conclusions:
I. No watch is a tubelight.
II. Some bulbs are switches.
III. Some tubelights are bulbs.
IV. No watch is a bulb.
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4, i.e., Only Conclusion III and IV follow.
Conclusions:
I. No watch is a tubelight → Does not follow (Not given any direct relation between both.)
II. Some bulbs are switches → Does not follow (Not given any direct relation between both.)
III. Some tubelights are bulbs → Follows (Some bulbs are tubelights, so definitely some tubelights are bulbs.)
IV. No watch is a bulb → Follows (Yes in statement gives a direct relation between both)