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 hill stations have a sun-set point. X is a hill station. Conclusions:
  1. X has a sun-set point.
  2. Places other than hill stations do not have sun-set points.

A Only conclusion I follows

B Only conclusion II follows

C Either I or II follows

D Neither I nor II follows

E Both I and II follow

ANS:A - Only conclusion I follows

Explanation: Since both the premises are universal and affirmative, the conclusion must be universal affirmative and should not contain the middle term. So, only I follows.



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