If ‘A + B’ means ‘A is the brother of B’, ‘A × B’ means ‘A is the daughter of B’ and ‘A – B’ means ‘A is the husband of B’, then in the expression D + E × F – G, how is D related to F?
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → Son
Read the expression one symbol at a time, each time between the two letters on either side of it. A brother has the same parents as his sister.
D + E: D is the brother of E, so D is a male
E × F: E is the daughter of F
F – G: F is the husband of G, so F is a male: F is E’s father
D is E’s brother, so F is also D’s father: D is the son of F
Why the other options are incorrect
Option (2) Brother — Incorrect. D is the brother of F’s daughter E, so he is one generation below F, not F’s brother.
Option (3) Nephew — Incorrect. A nephew is the son of a brother or sister; D is F’s own son.
Option (4) Son-in-law — Incorrect. A son-in-law is the husband of a daughter; D is the brother of F’s daughter, not her husband.