Solution of problem N2907 probability theory

Solution of problem N2907 probability theory

2907. In the basket of 12 white and 14 black balls. Randomly extract 2 of them. Calculate the probability that:
1) both balls will be black;
2) the balls will be different colors.

Additional information:

Detailed solution. Decorated in Microsoft Word 2003 (Quest decided to use the formula editor)

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