Question

A bag contains 3 red, 4 white and 5 black balls, what is the probability of getting one black ball. 5/12 03/12 1/12 O 4/12

Answer 1

A. 5/12

Step-by-step explanation:

The number of red balls = 3

The number of white balls = 4

The number of black balls = 5

`\begin{gathered} \text{Total}=3+4+5 \\ =12 \end{gathered}`

Therefore, the probability of getting one black ball will be:

`\begin{gathered} P(\text{one black ball)=}\frac{\text{Number of black balls}}{\text{Total number of balls}} \\ =(5)/(12) \end{gathered}`

The correct choice is A.