An urn contains 4 white 6 black and 8 red balls . If 3 balls are drawn one by one without replacement, find the probability of getting all white balls.  Choose the correct choice from the following options:
A) 1/209 B) 1/204 C) 1/207 D) 1/202 E) 1/201
Explanation:   Let A, B, C be the events of getting a white ball in first, second and third draw respectively, then   Required probability =   =   Now, P(A) = Probability of drawing a white ball in first draw = 4/18 = 2/9   When a white ball is drawn in the first draw there are 17 balls left in the urn, out of which 3 are white   Since the ball drawn is not replaced, therefore after drawing a white ball in the second draw there are 16 balls left in the urn, out of which 2 are white.   Hence the required probability   Answer: 1/204) 1/204
<result>B</result>
An urn contains 4 white 6 black and 8 red balls . If 3 balls are drawn one by one without replacement, find the probability of getting all white balls.