Question
The conjunction p and q is True when _________.
- p is True, q is False
- p is False, q is True
- p is True, q is True
- p is False, q is False
Question
If p is false and q is false, then ~p implies q is ________.
- True
- False
Question
The converse of the conditional statement 'If I live in Quetta, then I live in Pakistan' is ________.
- If I live in Pakistan, then I live in Quetta.
- If I live in Pakistan, then I do Not live in Quetta.
- If I do Not live in Quetta, then I do Not live in Pakistan
- If I do Not live in Quetta, then I live in Pakistan
Question
~(P --> q) is logically equivalent to _________.
- p AND ~ q
- p OR ~q
- ~p AND q
- ~p OR q
Question
If p <--> q is True, then ________.
- Only p is True.
- Only q is True.
- p and q both are True.
- None of the given.
Question
The switches in parallel act just like ________.
- NOT gate
- AND gate
- OR gate
- XOR gate
Question
Let A={2,3,5,7} B={2,3,5,7,2} c=set of first five prime numbers. Then from the following which statement is true ?
- A=B
- A=C
- B=C
- All the three sets are equal.
Question
If A=set of students of virtual university then A has been written in the _________.
- Tabular form
- Set builder form
- Descriptive form
- A is not a set
Question
If A And B are any two sets, then A-B= B-A
- True
- False
Question
x belongs to A or x belongs to B, therefore x belongs to ________.
- A intersection B
- A union B
- A difference B
- A symmetric difference B
Question
Range of the relation {(0,1),(3,22),(90,34)} is __________ .
- {0,3,90}
- {1,22,34}
- {0,1,3}
- {0,1,3,22,90,34}
Question
Which of the followings is the product set A * B * C ? where A = {a}, B = {b}, and C = {c, d}.
- {(a, b, c), (a, b, d)}
- {(a, c, b), (a, d, b)}
- {(b, c, a), (b, d, a)}
- {(c, b, a), (d, b, a)}
Question
Let R be the universal relation on a set A then which one of the following statement about R is true?
- R is not symmetric
- R is not reflexive
- R is not transitive
- R is reflexive, symmetric and transitive.
Question
Let R be the universal relation on a set A then which one of the following statement about R is true?
- R is not symmetric
- R is not reflexive
- R is not transitive
- R is reflexive, symmetric and transitive.
Question
Let R be a relation on a set A. If R is symmetric then its compliment is __________.
- Reflexive
- Irreflexive
- Symmetric
- Antisymmetric
Question
Let R be a relation on a set A. If R is reflexive then its compliment is ____________.
- Reflexive
- Irreflexive
- Symmetric
- Antisymmetric
Question
Let A={1,2,3} and B = {2,4}then number of functions from A to B are _________.
- 6
- 8
- 16
- 64
Question
Let X = {2,4,5} and Y={1,2,4 }and R be a relation from X to Y defined by R = {(2,4), (4,1), (a,2)}. For what value of ‘a ‘ the relation R is a function ?
- 1
- 2
- 4
- 5
Question
Let A = { 1,2,3,4} and B ={ 7 } then the constant function from A to B is _________ .
- Onto
- One to one
- Both one to one and onto
- Neither one to one nor onto
Question
Let f(x)=3x and g(x)=3x-2 define functions f and g from R to R. Then (f+g)(x)= _________.
- -2
- 6x+2
- 6x-2
- 6x.x-2
Question
The total number of terms in an arithmetic series 0 + 5 + 10 + 15 + .... + 50 are ________.
- 9
- 10
- 11
- infinite