|
39.
|
|
Fact
1:
|
All
hats have brims.
|
|
Fact
2:
|
There
are black hats and blue hats.
|
|
Fact
3:
|
Baseball
caps are hats.
|
If
the first three statements are facts, which of the following statements must
also be a fact?
|
I:
|
All
caps have brims.
|
|
II:
|
Some
baseball caps are blue.
|
|
III:
|
Baseball
caps have no brims.
|
|
|
A.
|
I only
|
|
B.
|
II only
|
|
C.
|
II and III only
|
|
D.
|
None of the statements
is a known fact.
|
|
Answer: Option D
Explanation:
All baseball caps have brims, since baseball
caps are hats (Fact 3) and all hats have brims (Fact 1). This rules out
statement III, but it doesn't follow that all caps, a category that may include
caps that are not baseball caps, have brims (statement I). Statement II cannot
be confirmed, either, since it is possible, given the information, that all
baseball caps are black.
