Question

Difficulty: MediumBlood Relations

In a family, AA is the father-in-law of BB, who is the mother of CC. DD is the brother of CC and the son of EE. If AA has only one child, how is EE related to AA?

Answer: Son / son

Answer

Son
Because BB is the mother of CC and DD, and EE is the father of DD, BB and EE are married as wife and husband. AA is the father-in-law of BB, which means AA is the father of BB's husband, EE. Therefore, EE is the son of AA.

Step-by-Step Solution

1
Determine the parental relationship of CC and DD
BB is the mother of CC. Since DD is the brother of CC, BB is also the mother of DD. DD is given as the son of EE, so EE must be the father of DD, making EE the husband of BB.
Since BB is female (mother) and DD is their child, EE must be male (father).
2
Determine the relationship between AA and EE
AA is the father-in-law of BB. The father-in-law of a woman is her husband's father. Since EE is BB's husband, AA is EE's father.
Father-in-law defines the parent of one's spouse.
3
Establish EE's relation to AA
Since AA is the father of EE, EE is the son of AA.
Direct lineage relationship from parent to child.

Key Concept

Blood Relations and Kinship Deduction
Estimated Time:1m 0s
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