Tag: business maths

Questions Related to business maths

Disjunction of two statements p and q is denoted by

  1. $p \leftrightarrow q$

  2. $p \rightarrow q$

  3. $p \leftarrow q$

  4. $p \vee q$


Correct Option: D

An implication or conditional "if p then q "is denoted by

  1. $p \vee q$

  2. $p \rightarrow q$

  3. $p \leftarrow q$

  4. None of these


Correct Option: B

The truth values of p, q and r for which $(pq)(∼r)$ has truth value F are respectively

  1. F, T, F

  2. F, F, F

  3. T, T, T

  4. T, F, F


Correct Option: C

 The negation of the compound proposition $p \vee (p \vee q)$ is

  1. $(p\wedge ∼q)\wedge ∼p$

  2. $(p\wedge ∼q)\vee  ∼p$

  3. $(p\wedge ∼q)\vee ∼p$

  4. none of these


Correct Option: A

Given, "If I have a Siberian Husky, then I have a dog." Identify the converse

  1. If I do not have a Siberian Husky, then I do not have a dog.

  2. If I have a dog, then I have a Siberian Husky.

  3. If I do not have a dog, then I do not have a Siberian Husky.

  4. If I do not have a Siberian Husky, then I have a dog.


Correct Option: B

$[(p)\wedge q]$ is logically equivalent to

  1. $(p\vee q)$

  2. $[p\wedge(q)]$

  3. $p\wedge(q)$

  4. $p\vee(q)$


Correct Option: D

$∼(p⇒q)⟺∼p\vee ∼q  \, is$

  1. a tautology

  2. a contradiction

  3. neither a tautology nor a contradiction

  4. cannot come to any conclusion


Correct Option: C

Consider the following statements 
$p$:you want to success
$q$:you will find way,
then the negation of $\sim (p\vee q)$ is

  1. you want of success and you find a way

  2. you want of success and you do not find a way

  3. if you do not want to succeed then you will find a way

  4. if you want of success then you cannot find a way


Correct Option: A

Which of the following statements is a tautology

  1. $\left( { \sim p \vee q} \right) - \left( {p \vee \sim q} \right)$

  2. $\left( { \sim p \vee \sim q} \right) \to p \vee q$

  3. $\left( {p \vee \sim q} \right) \wedge \left( {p \vee q} \right)$

  4. $\left( { \sim p \vee \sim q} \right) \vee \left( {p \vee q} \right)$


Correct Option: C

Which of the following is a logical statement?

  1. Open the door

  2. What an intelligent student!

  3. Are you going to Delhi

  4. All prime numbers are odd numbers


Correct Option: D
Explanation:

The above $3$ statements are basic statements.

But the $4$ statement is a logical statement.
All prime numbers are odd numbers.