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
To find the correct books, let's analyze the properties given for each book:
Book | Cover Color | Age | Type |
A | Yellow | New | Law |
B | Green | New | Law |
C | Green | Old | Law |
D | Yellow | New | Medical |
E | Green | Old | Medical |
F | Green | Old | Medical |
Step 1: Identify "Old" books
The new books are A, B, and D. Therefore, the old books are C, E, and F.
Step 2: Identify "Medical Extracts"
The law reports are A, B, and C. Therefore, the medical extracts are D, E, and F.
Step 3: Combine conditions (Old + Medical)
From our lists, the intersection of Old and Medical is E and F.
Step 4: Verify "Green Covers"
Both E and F have green covers.
Both conditions are satisfied by books E and F.
Correct Option: B) E and F
