(CESCEM - 1977) The set
is a subset of the
(natural numbers) and has the following elements:
12 multiples of 4
7 multiples of 6
5 multiples of 12
8 odd numbers
The number of elements of
are:
a) 32b) 27c) 24
d) 22e) 20
Answer (D)
(MACKENZIE - 1969) Knowing the set
, which one of the following statements is correct?
a)
b)
c)
d)
e)
Answer (E)