Directions: Read the information given below and answer the question (1-3).
O is the father of two children, P and R who are different genders. Q is P's spouse. S is the same gender as R. P and Q have two children. T is the same gender as P and U is the same gender as Q. S’s
mother V is married to Z and V is the is the sister of R’s mother M. S and S’s spouse I have two children, X and Y who are the same gender as W.
No person has married more than once and no child has been born out of wedlock. Only restrictions on marriage are that marriage to a sibling, to a direct descendant, or to more than one person at the same time is forbidden.
Q1. R can marry
(a) T only
(b) U only
(c) X only
(d) X and Y only
(e) Either T or X or Y
2. T is
(a) U’s brother
(b) U’s sister
(c) P’s daughter
(d) R’s niece or nephew
(e) The same gender as V
3. If the generation of T and Y’s parents and their siblings contains more females than males, then which of the following must be true?
(a) There are more females than males in T and Y’s generation
(b) X is male
(c) O is the same gender as R
(d) Y and U are the same gender.
(e) R is V’s nephew.
ANSWERS
1.Either T or X or Y. R is an a, and hence can marry any unmarried b.
2. R’s niece or nephew
3. X is male. This generation (middle) contains three a’s and two b’s. if the more numerous a's are female, b must be male.
