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Let p and q be the statements: p: It i...

Let p and q be the statements:
p: It is cold.
q: She needs a hot cup of tea.
Then p `rarr` q stands for

A

If it is cold then she needs a hot cup of tea

B

If it is not cold then she needs a hot cup of tea

C

It is cold and she needs a hot cup of tea

D

If she needs a hot cup of tea then it is cold.

Text Solution

AI Generated Solution

The correct Answer is:
To solve the problem, we need to analyze the implication \( p \rightarrow q \) where: - \( p \): It is cold. - \( q \): She needs a hot cup of tea. The expression \( p \rightarrow q \) translates to "If \( p \) is true, then \( q \) is also true." ### Step-by-Step Solution: 1. **Understanding the Implication**: - The implication \( p \rightarrow q \) means that if the statement \( p \) (It is cold) is true, then the statement \( q \) (She needs a hot cup of tea) must also be true. 2. **Interpreting the Statements**: - We can interpret this as: If it is indeed cold, then she will need a hot cup of tea. This is a logical connection between the two statements. 3. **Evaluating the Options**: - We need to find the correct interpretation of \( p \rightarrow q \) among the given options. - The correct interpretation should match the statement: "If it is cold, then she needs a hot cup of tea." 4. **Identifying the Correct Option**: - Option 1: "If it is cold, then she needs a hot cup of tea." (This matches \( p \rightarrow q \)) - Option 2: "If it is not cold, then she needs a hot cup of tea." (This does not match) - Option 3: "If she needs a hot cup of tea, then it is cold." (This is the converse, not the implication) - Option 4: "If she does not need a hot cup of tea, then it is not cold." (This is the contrapositive, not the implication) 5. **Conclusion**: - The only option that correctly represents the implication \( p \rightarrow q \) is Option 1. ### Final Answer: The statement \( p \rightarrow q \) stands for: "If it is cold, then she needs a hot cup of tea." ---
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MCGROW HILL PUBLICATION-MATHEMATICAL REASONING -EXERCISE (CONCEPT-BASED (SINGLE CORRECT ANSWER TYPE QUESTIONS ))
  1. Which of the following is not a proposition ?

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  2. Which of the following is a statement?

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  3. Which of the following is not statement?

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  4. Suppose p and q are two statements and p vee (~q) is false, then trut...

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  5. Let p and q be the statements: p: It is cold. q: She needs a hot ...

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  6. Let p and q stand for the statements: p: Monica is old . q: She ...

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  7. If p to (~ p vvq) is false, the truth values of p and q are , respecti...

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  8. ~ p ^^ q is logically equivalent to

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  9. The negation of p ^^ (q to ~ r) is

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  10. Identify the false statement

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  11. If S(p,q,r)=(~p)vv(~(q ^^ r)) is a compound statement, then S(~p,~q,~r...

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  12. Which of the following statements is false

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  13. Which of the following statement is dual of p ^^ ( q vee r ) equiv ...

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  14. The statement (p rarr q ) rarr p is equivalent to

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  15. If p and q have truth value 'F', then the truth values of (~ p vv q) h...

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  16. Which of the following is a tautology ?

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  17. The proposition (p to ~p) ^^ (~p to p) is a

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  18. Which of the following is not always true ?

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  19. The converse of the contrapositive of the conditional p to ~ q is

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  20. Suppose t denotes the tautology and c denotes the contradiction. Let p...

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