Question

10. A bag contains 15 balls of which x are blue and the remaining are red. 141
If the number of red balls are increased by 5, the probability of drawing the red
ball doubles.
Find (i) P (red ball) (ii) P (blue ball) (iii) P (blue ball if 5 red balls are added)​

Answer 1

Answer:

p (red)=1/5

p (blue)=4/5

p (blue ball if 5 red balls are added)=3/5