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Question:
2018 Winter Midterm - 5
Author: Michiel Smid
In a group of 100 people,
60 do not like Donald Trump and do not like Kim Jong Un, and
25 like Kim Jong Un.
How many people in this group like Donald Trump and do not like Kim Jong Un?
(a)
10
(b)
15
(c)
25
(d)
20
COMP 2804: Discrete Structures II
COMP 2804 Midterm
The Principle of Inclusion and Exclusion (3.5)