D.11 42. A box contain 10 Black balls, 7 White balls and 12 Red balls. A ball is draw What is the probability that the ball drawn is either Black or White? A. 16/25 B 17/29 15/25 D 12/15

To find the probability that the ball drawn is either Black or White, we need to calculate the total number of favorable outcomes (drawing a Black or White ball) and divide it by the total number of possible outcomes (drawing any ball from the box).The total number of favorable outcomes is the sum of the number of Black balls and the number of White balls, which is 10 + 7 = 17.The total number of possible outcomes is the sum of the number of Black balls, White balls, and Red balls, which is 10 + 7 + 12 = 29.Therefore, the probability that the ball drawn is either Black or White is 17/29.So, the correct answer is B. .