﻿ If from each of the three boxes containing 3 white and 1 black, 2 white and 2 black, 1 white and 3 black balls, one ball is drawn at random, then the probability that two white and one black ball will be drawn is : Kaysons Education

# If From Each Of The Three Boxes Containing 3 White And 1 Black, 2 White And 2 Black, 1 White And 3 Black Balls, One Ball Is Drawn At Random, Then The Probability That Two White And One Black Ball Will Be Drawn Is

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## Question

### Solution

Correct option is

13/32

P(2 white and 1 black)

= P(W1 W2 B2 or W1 B2 W3 or B1 W2 W3)

= P(W1P(W2P(B3) + P(W1P(B2P(W3) + P(B1P(W2P(W3)

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