Problema Solution
In how many ways 5 boys and 5 girls be seated in a row of 10 chairs if how many sit anywhere? The boys and girls alternate? The girl insist on sitting side by side?
Answer provided by our tutors
If anyone can sit anywhere
ways that 5 boys can sit this way
also ways the girls can sit
each of the ways the boys can sit
can be matched with ways the girls can sit
If boys and girls sit alternate
There are only 2 ways if you don't care which girls and which boys
sit in which seats