A box has 10 black and 10 white balls. What is the probability of getting two balls of the same color?	Choose the correct choice from the following answers
A) 9/18
B) 9/19
C) 9/12
D) 9/11
E) 9/13
ANSWER:9/19
<result>B</result>
A box has 10 black and 10 white balls. What is the probability of getting two balls of the same color?