Logical Deduction

Directions to SolveIn each of the following questions, two statements are given followed by three or four conclusions numbered I, II, III and IV. You have to take the given statements to be true even if they seem to be at variance from the commonly known facts and then decide which of the given conclusions logically follows from the given statements disregarding commonly known facts.

Q1: Statements: All politicians are honest. All honest are fair. Conclusions:
  1. Some honest are politicians.
  2. No honest is politician.
  3. Some fair are politicians.
  4. All fair are politicians.

A None follows.

B Only I follows.

C Only I and II follow.

D Only I and III follow

ANS:D - Only I and III follow

Explanation: Clearly, it follows that 'All politicians are fair'. I is the converse of the first premise, while III is the converse of the above conclusion. So, both I and III hold.



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