Question

a bag contains 8 red balls and some Blue Balls if the probability of drawing a blue ball is 3 times of red ball the number of blue balls in the bag is​

Answer 1

Answer:

40

Step-by-step explanation:

Let the number of blue balls be 'x'

Total number of balls = 8 + x

Probability of drawing a red ball

= 8/(8+x)

Probability of drawing a blue ball

= x/(8+x)

From question :

x/(8+x) = 3* 8/(8+x)

On solving you will get :

x^2 -16x - 192 = 0

x = 40 or -24 (not possible)

So x =40