Question

a bag contains 4 white and some red balls if the probability of drawing a red balls 1% double that of drawing a white wall find the number of red balls in the bag​

Answer 1

let no of red balls =X

.•.total no of balls is = X+4

$p(red) = 2p(white)$

$\frac{x}{x + 4} = 2 \times \frac{4}{x + 4}$

$x = 8$

Answer 2

Answer:

x=8 ................................