A is the brother of C. B is the only sister of D who is the maternal uncle of C. If E is the father of C, then how is A related to B?
Answer & explanation
Correct answer: option 4
Note the point:
i) B is the only sister of D and D is the maternal uncle of C, it means C is the daughter/son of B.
ii) Further, E is father of C, therefore E is husband of B only.
Now, ATQ,

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Please note:
l ⇒ Vertical line shown "generation gap".
= ⇒ Double lines shown "relation of spouse"
— ⇒ Horizontal line shown "relation in same generation other than spouse".
⇒ Rectangular box shown " Male".
⇒ Circular box shown " Female".
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