Two statements are given, followed by two conclusions numbered I and II. Assuming the statements to be true, even if they seem to be at variance with commonly knownfacts, decide which of the conclusions logically follow(s) from the statements.
Statements:
All phones are gadgets.
All gadgets are machines.
Conclusions:
I.All phones are machines.
II.All machines are gadgets.
Show answer & explanation
Correct answer: D
Explanation
The correct answer is Option 4 i.e. Only conclusion I follows
The least possible Venn diagram is

Conclusions:
I. All phones are machines. True (as all phones are gadgets and all gadgets are a part of machines so all phones are definitely machines.)
II. All machines are gadgets. False (all gadgets are machines but the reverse cannot be true)
Hence, Only conclusion I follows is the correct answer.