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Standard XII
Logical Reasoning
Question

In each group of questions below are two/three statements followed by two conclusions numbered I and II. You have to take the given statements to be true even if they seem to be at variance with commonly known facts and then decide which of the given conclusions logically follows from the two/three statements, disregarding commonly known facts. Give answer
Statements: All notes are books.
All books are pages.
Some books are colleges.
Conclusions: I. All books can never be colleges.
II. Any book which is a note must be a page.
  1. if only conclusion I follows.
  2. if only conclusion II follows.
  3. if neither conclusion I nor conclusion II follows.
  4. if both conclusion I and conclusion II follow.
  5. if either conclusion I or conclusion II follows.

A
if only conclusion I follows.
B
if neither conclusion I nor conclusion II follows.
C
if only conclusion II follows.
D
if either conclusion I or conclusion II follows.
E
if both conclusion I and conclusion II follow.
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Solution
Verified by Toppr

  1. All books can never be colleges. This is incorrect for venn diagram (B)
  2. Any book which is a note must be a page. This is surely correct from both the venn diagram (A) and (B).
Therefore, only conclusion II follows.
Answer is option (B)

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