Question

3 balls are drawn from a box containing 6 red, 4 white and 5 blue balls. The probability that the balls drawn to appear in the order red, blue and white is:

Answer 1

Answer:1. A ball is drawn at random from a box containing 6 red balls, 4 white balls, and 5 blue balls.

Determine the probability that the ball drawn is

(a) red.

6 ways out of 15 = 6%2F15 = 2%2F5

(b) white,

4 ways out of 15 = 4%2F15  

(c) not red.

That's the complement of (a), so it's 1 - 2%2F5 = 3%2F5

 

(d) red or white.

10 ways out of 15 = 10%2F15 = 2%2F3

Step-by-step explanation: