beginning of content:
SAT Subject Test
Twenty students have each sampled one or more of three kinds of candy bars that a school store sells. If 
students have sampled all three kinds, and 
have sampled exactly two kinds, how many of these students have sampled only one kind?
Select an Answer
Correct Answer:
No
Correct Answer:
Yes
Correct Answer:
No
Correct Answer:
No
Correct Answer:
No
View Correct Answer
The correct answer is B.
It is given that students have sampled all three kinds of candy bars and that students have sampled exactly two kinds, so a total of 
students have sampled more than one kind of candy bar. Since 
students have sampled one or more of the three kinds of candy bars, the number of students that have sampled only one kind is 
.
Question Difficulty:
medium