Question:
An international meeting is held between England, Germany, and France.  Three representatives attend from England, four from Germany, and two from France.  How many ways can all nine representatives sit around a circular table, if representatives of the same country sit together?  (Two ways are considered the same if one can be rotated to produce the other.)

Answer:
To begin, consider the number of ways to arrange the three countries around the circle.  We can consider the English representatives a block, the Germans another block, and the French a third block.  There are $(3-1)!=2$ ways to arrange these three blocks around a circle.  We can also see this by simply drawing the two possible arrangements: [asy]
label("E",(0,0));
label("F",(-.75,-1));
label("G",(.75,-1));
label("E",(3,0));
label("F",(3.75,-1));
label("G",(2.25,-1));
[/asy] Within the English group, there are $3!=6$ ways to arrange the three representatives.  Similarly, there are $4!$ ways to arrange the Germans and $2!$ ways to arrange the French representatives.  Overall, the total number of ways to seat the 9 representatives is: $$2!\times3!\times4!\times2!=2\times6\times24\times2=\boxed{576}$$