Question 1026776
{{{C(4,2)*3! = 6*6 = 36}}}

If the five balls were lined up there are four spaces in-between where two separators can be inserted.  The two separators can be positioned in C(4,2) = 6 ways.  After this, the three separated sets can be arranged in 3! = 6 ways.  This gives a total of 6*6 = 36 ways.