Logical Deduction

Directions to SolveIn each question below are given two statements followed by two conclusions numbered I and II. You have to take the given two statements to be true even if they seem to be at variance from commonly known facts. Read the conclusion and then decide which of the given conclusions logically follows from the two given statements, disregarding commonly known facts.Give answer:
  • (A) If only conclusion I follows
  • (B) If only conclusion II follows
  • (C) If either I or II follows
  • (D) If neither I nor II follows and
  • (E) If both I and II follow.

Q1: Statements: All boys are honest. Sachin is honest. Conclusions:
  1. Sachin is a boy.
  2. All honest persons are boys.

A Either I or II follows

B Only conclusion II follows

C Only conclusion I follows

D Neither I nor II follows

E Both I and II follow

ANS:D - Neither I nor II follows

Explanation: Both the premises are A type propositions. So, the middle term 'honest' forming the predicate in each is not distributed in either. Since the middle term is not distributed even once, no definite conclusion follows.



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