There are six persons in a room namely A, B, C, D, E & F. A and E are…
2023
There are six persons in a room namely A, B, C, D, E & F. A and E are brothers, B and D are daughters of the brother of C's father. F is the sister of E and C is the only son of A's uncle. How many male and female members, respectively, are there in the room?
Answer: A. 3 & 3 — ConceptKinship words often encode gender directly: brother and son denote male persons, while daughter and sister denote female persons. Count each named…
- A.
3 & 3
- B.
4 & 2
- C.
2 & 4
- D.
5 & 1
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Correct answer: A
Concept
Kinship words often encode gender directly: brother and son denote male persons, while daughter and sister denote female persons. Count each named person once; longer family links establish relationships but do not change an explicitly stated gender.
Application
A and E are described as brothers, so both are male.
B and D are described as daughters, so both are female.
F is described as E’s sister, so F is female.
C is described as a son, so C is male.
Cross-check and contrast
The male set is {A, E, C}, and the female set is {B, D, F}. These disjoint sets cover all six named people.
The phrase “sister of E” assigns the female marker to F; E’s separate description as a brother remains unchanged.
The stem explicitly describes C as a son; the nearby limiting word affects the number of sons in that family branch, not C’s gender.
The phrase “A and E are brothers” marks two people as male; it does not alter the daughter or sister markers elsewhere.
Therefore, the room contains 3 male and 3 female members.