Question

A bag contains three white marbles, two black marbles, and five red marbles. Find the probability of picking a black marble

Answer 1

Well, there is 10 marbles in total and there is 2 black marbles. So, you get 2/10 but you need to simplify it and then you get 1/5. 

Answer 2

Answer: 0.2

Explanation:

Given : The number of black marbles in the bag = 2

The total number of marbles in the bag =
`3+2+5=10`

Then , if one marble is drawn from the bag ,the probability of picking a black marble will be :-

`\text{P(Black)}=\frac{\text{Number of black marbles}}{\text{Total marbles}}\\\\\Rightarrow\text{P(Black)}=(2)/(10)=0.2`

Therefore, the the probability of picking a black marble =0.2