Six books are labelled A, B, C, D, E and F are placed side-by-side. Books B, C, E and F have green covers while others have yellow covers. Book A, B and D are new while the rest are old volumes. Book A , B and C are law reports while the rest are medical extracts. Which two books are old medical extracts and have green covers?
Explanation
1. Data Breakdown:
-
Color: * Green: {B,C,E,F}
-
Age: * New: {A,B,D}
-
Subject: * Law Reports: {A,B,C}
2. Applying the Constraints:
We need to find books that satisfy all three conditions:
-
Old
-
Medical Extract
-
Green Cover
Let S be the set of books satisfying the requirements:
S={Old}∩{Medical Extracts}∩{Green Cover}
3. Conclusion:
Both books E and F are old volumes, belong to medical extracts, and have green covers.
Final Logic
Correct Option: (B) E and F