SOLUTION: Valentina, Luke, Sally, Han and Mae are to be placed in a line in random order.
What is the probability that the boys will be next to each other and the girls will all
2 boys and 3 girls.
They can be successfully placed in 2 basic ways, GGGBB or BBGGG
The girls can be arranged 3!=6 ways and the boys 2!=2 ways.
That's 2*6*2 = 24 ways out of 5!=120 ways to arrange the 5 every
possible way.
Answer 24/120 = 1/5.
Edwin