Subject: mathqa
Question: let a be the event that a randomly selected two digit number is divisible by 2 and let b be the event that a randomly selected two digit number is divisible by 5 . what is p ( a and b ) ?
Option: 
A: 1 / 5
B: 1 / 2
C: 1 / 3
D: 1 / 10
Answer: D