C. elements.
sets. Symbolica
one common de
9
C.
mmon element
4.
d. none
In a group of 60 people, 27 like cold drinks and 42 like hot drinks
and each person likes at least one of the two drinks. How many like
both coffee and tea?
a.
b. 10
12
d. 15
There are 35 students in art class and 57 students in dance class.
What is the number of students who are either in art class or in
dance class when two classes meet at different hours and 12
students are enrolled in both activities?
a.
80
b. 85
75
d.
C.
92
There are 35 students in art class and 57 students in dance class.
What is the number of students who are either in art class or in
dance class when two classes meet at the same hour?
b.
80
85
a.
d.
75
92
c.
5.