A woman said, "That boy's mother is the only daughter of my mother." How is the boy related to her?
- A. Her son
- B. Her brother
- C. Her nephew
- D. Her cousin
Explanation
The only daughter of her mother is the speaker herself, so the boy's mother is the speaker and the boy is her son. As in the earlier question, only is the word that makes the identification certain. Failing to substitute leaves the puzzle unsolvable.
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