Hello, scrappy!
How many ways can we arrange a row of four girls followed by four boys
if girls must sit togther and boys must sit together?
. .
Answer: . ways
It's a matter of interpretation, I guess, but I did give it some thought.
"How many ways can we arrange a row of four girls followed by four boys . . . "
. . I read that to mean in that order.
If they meant or , why use the phrase "followed by"?
Wouldn't it have said, "In how many ways can we arrange a row of four girls and four boys
. . if girls must sit togther and boys must sit together?"