Question

a bag contains 4 white and 6 red balls. how many white balls should be added to the bag so that the probability of getting a white ball is doubled when a ball is drawn from the bag​

Answer 1

Answer:

8 white balls should be added to make the probability of white balls double the red ball.

Total=18

P(w)=12/18=2/3

P(R)=6/18=1/3