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In the following question below are given some statements followed by some conclusions based on those statements. Taking the given statemen…

358537Medium DSSSB TGT Computer Science 0 replies 0 views
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In the following question below are given some statements followed by some conclusions based on those statements. Taking the given statements to be true even if they seem to be at variance from commonly known facts. Read all the conclusions and then decide which of the given conclusion logically follows the given statements.
Statements:
I. No X are Y.
II. Some Z are Y.
Conclusions:
I. All Z are X.
II. No Y is X.
  • AOnly conclusion II follows
  • BBoth conclusions I and II follows
  • CNeither conclusion follows
  • DOnly conclusion I follows
Correct answer: A

Explanation

The statement "No X are Y" gives "No Y is X" by simple conversion, so conclusion II follows. "Some Z are Y" does not tell us anything about all Z being X, so I does not follow.

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