A bag contains 6 black and 5 white balls. One ball is drawn at random. What is the probability that the ball drawn is white?	Choose the correct answer:
A) 3 / 4
B) 5 / 11
C) 1 / 7
D) 1 / 8
E) 4 / 3

Rationale: "let number of balls = ( 6 + 5 ) = 11 . number of white balls = 5 p ( drawing a white ball ) = 5 / 11 option b ."
Answer: B