Question

9. A bag contains 5 red balls, 7 yellow balls and 3 pink balls, if two balls are drawn at random from the bag, one after another, what is the probability that the first ball is red and the second ball is yellow ?

Answer 1

Total balls= 7+5+3=15
Probability of getting a red ball =5/15=1/3
Probability of getting a yellow ball= 7/15
Therefore Probability of getting that the first ball is red and second is yellow = 1/3+7/15=12/15.