Six books are labelled A, B, C, D, E and F and are placed side by side. Books B, C, E and F have green covers while others have yellow covers. Books A, B and D are new while the rest are old volumes. Books A, B and C are law reports while the rest are medical extracts. Which two books are old medical extracts and have green covers?

Correct Option (2)

: E and F

To identify the books that are old medical extracts and have green covers, each book's characteristics must be evaluated against these three criteria:

• Books B, C, E, and F have green covers.
• Books C, E, and F are old volumes.
• Books D, E, and F are medical extracts.

Applying all three conditions:

• Book E possesses a green cover, is an old volume, and is a medical extract.
• Book F possesses a green cover, is an old volume, and is a medical extract.

Therefore, books E and F are the only two that satisfy all specified conditions.

Incorrect Options:

• Option (1) B and C: Book B is a new volume and a law report, failing two of the three criteria. Book C is a law report, not a medical extract.
• Option (3) C and E: Book C is a law report, not a medical extract, making this pair incorrect.
• Option (4) C and F: Book C is a law report, not a medical extract, making this pair incorrect.