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Question:
2019 Winter Midterm - 5
Author: Michiel Smid
In a group of 100 students,
37 students like beer,
18 students like cider,
55 students do not like beer and do not like cider.
How many students like beer and cider?
(a)
9
(b)
8
(c)
10
(d)
11
COMP 2804: Discrete Structures II
COMP 2804 Midterm
The Principle of Inclusion and Exclusion (3.5)