A bag contains 5 red balls and some blue balls. If the probability of drawing a blue ball is double that of a red ball, determine the number of blue balls in the bag.
Answer:
Let the number of blue balls in the bag
Total no of balls in a bag [No. of the red ball ]
Probability of drawing a blue ball
Probability of drawing a Red ball
Given,
Hence, no. of blue balls in the bag=.
A bag contains 5 red balls and some blue