Question

A bag contains 8 red balls and some blue balls. If one ball is drawn

randomly the probability of drawing a red ball to a blue ball are in the

ratio 5 : 2, determine the probability of drawing a blue ball from the

bag​

Answer 1

Answer:

10

Step-by-step explanation:

Let number of blue balls =x

Total number of balls =5+x

Probability for a red ball = 5/x+5

probability for a blue ball = x/x+5

According to the question

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

x= 10

Number of blue balls =10.