Question

A bag contains 6 red marble and some Blue Balls if the probability of drawing a blue ball from the bag in twice that of a red ball find the number of blue ball in the bag

Answer 1

Step-by-step explanation:

12 blue balls

probability of red balls = 6/total no of balls

probability of blue balls = 12/total no of balls

probability of red + blue = 6/total +12/total = 1

18/ total = 1

total no of balls = 18

blue balls = 18 - 6 = 12