Read the given statements 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 of the given conclusions logically follow(s) from the statements.
Statements:
Some lights are wires.
All appliances are lights.
All bulbs are appliances.
Conclusions:
I. Some lights are appliances.
II. Some wires are bulbs.
III. All bulbs are lights.
Show answer & explanation
Correct answer: A
Explanation
The correct answer is Option 1. i.e. Both conclusions I and III follow.
The least possible Venn Diagram for the given statements is drawn below:
Conclusions:
I. Some lights are appliances → True (As all appliances are lights, so, some lights are appliances is also true.)
II. Some wires are bulbs → False (It is possible but no definite conclusion can be drawn.)
III. All bulbs are lights → True (As all appliances are lights and all bulbs are appliances, so, all bulbs are lights is also true.)
Hence, Both conclusions I and III follow.