Mathematics

From a box containing 2 red, 6 white and 5 black balls, a ball is…

From a box containing 2 red, 6 white and 5 black balls, a ball is randomly selected. What is the probability that the selected ball is black?
  • A.
    2/13
  • B.
    5/13
  • C.
    5/11
  • D.
    5/6
  • E.
    11/13
Correct Answer: Option B
Explanation

2r, 6w, 5b balls
Total balls = 2 + 6 + 5 = 13 balls p(black) = 5/13