There are 2 positive integers x and y. What is the probability that x+y is odd? Choose the most appropriate option
A) 1/4
B) 1/2
C) 1/3
D) 1/5
E) 1/9
Explanation :   The addition of two integer results in an odd number only if any one of the integers is an odd number.   The probability of an odd among the two integer is 1/2.   Hence, the required probability is 1/2.   Answer : 1/2
<result>B</result>
There are 2 positive integers x and y. What is the probability that x+y is odd?