Question

A bag contain 5 red ball and some blue balls if the prabality of drawing a blue ball is double that of red ball determine the number of balls in the balls

Answer 1

Answer:

let the number of balls be x

total balls= x + 5

P(blue balls) = 2 {P(red balls)}

x / x + 5 = 2(5/ x +5 )

x = 10

therefore, no. of blue balls in bag is 10

total no. of balls in bag = red balls + blue balls

= 5 + 10

=  15 balls

Answer 2

hope it helps you

✔✔✔✔✔✔✔✔