Question

1) A bag contains 5 white balls and some blue balls. If the probability of drawing a blue ball is double that of a white ball, determine the number of blue balls in the bag.(Give answer in full solution.)​

Answer 1

Answer:

number of white balls in a bag =5

expose the number of blue ball in the bag=x

therefore, total number of balls in the beg

P(white ball)=5/5+x

P(blue ball)=x/5+x

now, P(blue ball)=2 P(red ball) (given)

x/5+x=2×5/5+x

x=10

Answer 2

Answer:

10 blue balls

Step-by-step explanation:

let probability of white ball be u.

let probability of white ball be u.But white ball = u = 5

let probability of white ball be u.But white ball = u = 5Blue ball is duble the white ball.

let probability of white ball be u.But white ball = u = 5Blue ball is duble the white ball.Blue ball = 2u =2×5 = 10