Two boys and three girls are going to sit around a table with 5 different chairs. If the two boys want to sit next to Jill, in how many possible ways can they be seated?
Seat Jill first. Rotations are normally classed as the same so only one way.
Seat the 2 boys 2 ways
Seat the other 2 in the remaining seats 2 ways.
2*2=4 ways.