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Railways PYQCBT 2 2017

RRB NTPC · Question 92

Below are given statements followed by some conclusions. You have to take the given statements to be true even if they seem to be at variance with the commonly known facts and then decide which of the given conclusions logically follow(s) from the given statements. Statements: Some pearls are green. Some gems are ornaments. Conclusions: I. Some gems are pearls II. Some ornaments are gems.

  1. Only Conclusion I follows.

  2. Either Conclusion I or II follows.

  3. Neither Conclusion I nor II follows.

  4. Only Conclusion II follows.

Show answer & explanation

Answer: (D) Only Conclusion II follows.

Explanation

Nothing links pearls with gems – the two statements share no term – so Conclusion I does not follow. 'Some gems are ornaments' converts directly to 'Some ornaments are gems' (a 'some' statement can always be reversed), so Conclusion II follows. Only II follows.