2.11: Holiday book selection
Naomi is going on holiday and intends to read 4 books during her time away. She selects these books from 5 mystery, 3 crime and 2 romance books.
(i)[1]
Find the number of ways in which she can make her selection if there are no restrictions.
(ii)[3]
Find the number of ways in which she can make her selection if she selects at least 2 mystery books.
(iii)[3]
Find the number of ways in which she can make her selection if she selects at least 1 book of each type.