5 A group of 12 people consists of 3 boys, 4 girls and 5 adults.
- In how many ways can a team of 5 people be chosen from the group if exactly one adult is included?
- In how many ways can a team of 5 people be chosen from the group if the team includes at least 2 boys and at least 1 girl?
The same group of 12 people stand in a line. - How many different arrangements are there in which the 3 boys stand together and an adult is at each end of the line?