Question

A bag contains 2 red balls, 5 black balls and 5 white balls. A ball is drawn at random from the bag. What is the probability of not getting a black ball?

• A.
• B.
• C.
• D.

Answer 1

The correct option is B

Sample Space = 2+5+5 = 12
Number of occurrence of black = 5
Probability of getting a black = $\frac{5}{12}$
Probability of not getting a black = $\frac{7}{12}$