Let and . Consider the subset of consisting of all pairs such that is even. How many…

MATHEMATICS · Single correct · CBSE · Mathematics · Relations and Functions · Relations and Functions

Problem

Let

A=\{1,2,3\}

and

B=\{4,5\}

. Consider the subset

S

A\times B

consisting of all pairs

(a,b)

such that

a+b

is even. How many elements does

S

contain? (a)

6

(b)

2

(c)

3

(d)

4