XBC204 Discrete Mathematics

Matrix multiplication is a/an _________ property

• Commutative

• Associative

• Additive

• Disjunctive

In a conditional statement, the first part is the antecedent and the second part is the _________

• Predicate

• Consequent

• Subject

• Disjunct

The LUB of a subset a, b⊆L is denoted by ___________

• a∧b

• a∨b

• a⟶b

• a↔b

A poset in which every pair of elements has both a least upper bound and a greatest lower bound is termed as __________

• Lattice

• Sublattice

• Trail

• Walk

If A and B are two sets then B- (B-A) = ___________

• (A-B)-B

• A-(A-B)

• A

• B

In how many ways 4 boys and 3 girls can be seated in a row so that they are alternate?

• 144

• 288

• 12

• 256

Let P: I am in Bangalore.; Q: I love cricket.; then q -> p (q implies p) is____________

• If I love cricket then I am in Bangalore

• If I am in Bangalore then I love cricket

• I am not in Bangalore

• I love cricket

What is the inverse of an if (Z,*) is a group with a*b = a+b+1 ∀ a, b ∈Z?

• -2

• 0

• -a-2

• a-2

If the ordered pairs (a + 2, 4) and (5, 2a + b) are equal then (a,b) is_____________

• (2,-2)

• (5,1)

• (2,3)

• (3,-2)

In how many ways, a committee of 5 members can be selected from 6 men and 5 ladies, consisting of 3 men and 2 ladies?

• 50

• 100

• 150

• 200