Question

a bag contains 12 balls out of which X are the black balls find the probability of getting a black ball if one ball is drawn if 6 more black balls are added in a bag the probability of getting a black ball will be double find x​

Answer 1

Hey your answerr is here..

Total number of balls = 12

Total number of black balls = x

P (getting a black ball) = x/12

If 6 more black balls are put in the box, then

Total number of balls = 12 + 6 = 18

Total number of black balls = x + 6

P (getting a black ball now) = x + 6 /18

Atq,

2(x/12) = ( x+. 6 /18)

3x = x+6

2x=6

x = 3

plzz mark as brainliest answer !

Answer 2

Answer:

X=5

Step-by-step explanation:

x minus 1 +6=2x

x+5=2x ( negative 1 plus positive 6 = 5)

5=2x minus x

5=1x

therefore x=5/1=5