K is the brother of N and X. Y is the mother of N and Z is the father of K.
Which of the following statements is not definitely true ?
A. K is the son of Z.
B. Y is the wife of Z.
C. K is the son of Y.
D. K is the father of X.
E. N is the brother of X.
Answer: E . N is the brother of X.Tweet
K is the brother of N and X. So, Y, who is the mother of N and Z, who is the father of K, will be mother and father of all three. However, it is not mentioned whether N is male or female.