Question

A bag contains 8 red balls and some blue balls. IF the probability of drawing a blue
ball is three times of a red ball, Find the number of blue balls in the bag.

Answer 1

Step-by-step explanation:

Let x be the number of blue balls

Therefore, total no. of balls=x+8

Probability of getting a red ball=8/(x+8)

and probability of getting a blue ball=x/(x+8)

According to question

{x/(x+8)}=3×{8/(x+8)}

x = 24