Pointing at a woman, a boy said, "Her only son is my father." How is the boy related to the woman?

  • A. Her son
  • B. Her brother
  • C. Her nephew
  • D. Her grandson

Explanation

The woman's son is the boy's father, so the woman is one generation above the father and two above the boy, making her his grandmother and him her grandson. Counting generations upward from the speaker is the quickest check. Her son being described as only rules out any uncle on that side.

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