Question

A bag contain 3 red balls and some black balls. If the probability of drawing a black ball is double
that of a red ball, then the number of black balls in the bag is​

Answer 1

Answer:

6

Step-by-step explanation:

If the chances of drawing a black ball is double the chances of drawing a red ball, the number of black balls must be double that of the red ball. So, 3 x 2 = 6 black balls.

Answer 2

Answer:

6

Step-by-step explanation:

we know that for every red ball there are 2 black ball

therefore, ratio of balls are X:2X

X=3

hence the no of balls are 6(2x)