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Ninth Grade (Grade 9) Logical Thinking Questions

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Grade 9 Logical Thinking
Which of the following is the biconditional statement for the conditional statement:
If today is Saturday or Sunday, then it is the weekend.
  1. It is the weekend if and only if it is Saturday or Sunday
  2. If is not the weekend, then it not Saturday or Sunday.
  3. If it is not Saturday or Sunday, then it is not the weekend.
  4. It is not Saturday or Sunday if and only if it is the weekend.
Grade 9 Logical Thinking
Determine the inverse of the statement: if p, then q
  1. If ~q, then p
  2. If p, then ~q
  3. If ~p, then q
  4. If ~p, then ~q
Grade 9 Logical Thinking
Determine the contrapositive of the statement: if p, then q
  1. if ~q, then ~p
  2. If p, then ~q
  3. If ~p, then q
  4. If q, then p
Grade 9 Logical Thinking
Determine the converse of the statement if p, then q
  1. If ~q, then p
  2. If p, then ~q
  3. If ~p, then q
  4. If q, then p
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