Question

UI
A bag contains 12 balls out of which x are black balls. Find the probability of getting a
black ball if one ball is drawn. If 6 more blacks balls are added in the bag. the probability
of getting a black ball will be double. Find x​

Answer 1

Step-by-step explanation:

UI

A bag contains 12 balls out of which x are black balls. Find the probability of getting a

black ball if one ball is drawn. If 6 more blacks balls are added in the bag. the probability

of getting a black ball will be double. Find x

Answer 2

Answer:

X=3

Step-by-step explanation:

Probability of black ball = x/12

When 6 black ball are added probability of black ball = (x+6)/18

ATQ

2X/12 =(X+6)/18

6X=2X+12

X=3