In a survey of the dining preferences of 46 dormitory students at the end of the spring semester, the following facts were discovered about Adam's Lunch AL, Pizza Tower PT, and the Dining Hall DH.
?
23 liked AL but not PT
11 liked AL only
39 liked AL
18 liked PT
27 liked DH
7 liked PT and AL but not DH
10 liked PT and DH
?
How many liked all three?
?
A. 26
B. 14
C. 101
D. 9
E. 46
Answer: D
Mathematics
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- 
A. 
B. 
C. 
D. 
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