SOLUTION: A bag contains 8 balls of which 5 are red and 3 are white. If a man selects 2 balls at random from the bag, what is the probability that he will get one ball of each colour?

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Question 1200884: A bag contains 8 balls of which 5 are red and 3 are white. If a man selects 2 balls at random from the bag, what is the probability that he will get one ball of each colour?
Answer by ikleyn(52803)   (Show Source): You can put this solution on YOUR website!
.
A bag contains 8 balls of which 5 are red and 3 are white.
If a man selects 2 balls at random from the bag,
what is the probability that he will get one ball of each colour?
~~~~~~~~~~~~~~~ 

The number of all possible different pairs of balls is   = 4*7 = 28.


The number of pairs with different colors is 5*3 = 15.


Therefore, the probability under the problem's question is  .    ANSWER

Solved.

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To see many other similar and different simple introductory problems on Elementary Probability theory,  look into the lessons
    - Simple and simplest probability problems
    - Elementary Probability problems related to combinations
in this site.



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