Question

the bag contains 12 balls of which X number of balls are white if 6 more white balls are put in the bag the probability of drawing a white ball will be double than that when the probability of drawing a white ball random .then the value of x​

Answer 1

Answer:

Step-by-step explanation:

no of balls=12

no of white balls =x

p(white ball) = no. of favourable outcomes/no of total possible outcomes

= x/12----(1)

2)

if 6 more white balls are put in the bag

no of total balls = 18

no of white balls =x+6

p(white balls)= (x+6)/18---(2)

therefore

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

(x+6)/18 =x/6

x+6 = 18x/6

x+6=3x

6=3x-x

6=2x

2x=6

x=6/2

x=3

Answer 2

Hi..

total balls = 12
white balls = x

probability = x/12______(1)

if 6 are added,

white balls = x+6
total = 18

probability = x+6/18_______(2)

From 1 and 2

ATQ,
▪$\frac{x + 6}{18} = 2 \times \frac{x}{12}$

▪12x + 72 = 36x

▪24x = 72

▪x = 72/2

$\bold{x =3}$

#tq