Three statements are given followed by three conclusions numbered I, II and III. 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(s) from the statements.
Statements:
Some cups are glasses.
No glass is a stone.
All stones are metals.
Conclusions:
I. All cups can never be stones.
II. No cup is a metal.
III. All metals can never be glasses.
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. Only I and III conclusion follow.
Conclusions:
I. All cups can never be stones. - Follows (because the part of cups that is glass can never be stone as no glass is a stone)
II. No cup is a metal. - Does not follow (because there is no direct relation between cup and metal so it can be possible but not definite)
III. All metals can never be glasses. - Follows (because some part of the metal is stone and no glass is a stone)