A group of 6 teenagers go boating. There are three boats available. One boat has room for 3 people, one has room for 2 people and one has room for 1 person. Find the number of different ways the group of 6 teenagers can be divided between the three boats.
Find the number of different 7-digit numbers which can be formed from the seven digits 2, 2, 3, 7, 7, 7, 8 in each of the following cases.
The odd digits are together and the even digits are together.
The 2 s are not together.
If you use the following lined page to complete the answer(s) to any question(s), the question number(s) must be clearly shown.