Решение задачи N3054 теория вероятностей

3054. In the box 25 balls, of which 10 are green and 15 are red. 3 balls are successively taken out of the box; The first and second balls are not returned to the box. Find the probability that the first ball is turned out to be green, and the second - red, the third - red.

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