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?
i know stuiped question i just cant figure it out lol
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?
. . $\displaystyle \underbrace{G\:G\:G\:G}_{\text{4! ways}}\,\underbrace{B\:B\:B\:B}_{\text{4! ways}}$
Answer: .$\displaystyle 4! \times 4! \:=\:24 \times 24 \:= \:576$ 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 $\displaystyle GGGGBBBB$ or $\displaystyle BBBBGGGG$, 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?"