In a family, there are three siblings: X, Y, and Z. X is older than Y, and Y is older than Z. If Z is 10 years old, how old is X at least?

B. 11

In a family, P is the son of Q. R is the daughter of Q. S is the father of R. How is P related to S?

C. NEPHEW

In a family, A is the brother of B, and C is the sister of B. If A is 15 years old and B is 2 years older than A, how old is C?

D. NOT SPECIFIED

In a family, there are two parents and three children. The father is a banker, the mother is a nurse, and one of the children is a student. If the student is the youngest, who is the oldest child?

C. THE OTHER CHILD

In a family, there are three generations: Grandfather, Father, and Son. The grandfather is a retired engineer, the father is a teacher, and the son is a student. If the son wants to become like his father, what profession will he likely choose?

B. TEACHER