Pointing to a photograph, a man said, "She is the daughter of the only son of my grandfather." How is the woman in the photograph related to the man?

His sisterCorrect answerYour answerHis cousinCorrect answerYour answerHis nieceCorrect answerYour answerHis daughterCorrect answerYour answer

Show the answer and explanation

CorrectNot quiteAnswer A

Correct answer: A

Work outwards from the innermost phrase. 'My grandfather' is the man's grandfather.
'The only son of my grandfather' must therefore be the man's own father.
'The daughter of' his father is his sister.

Worth noting

The word "only" is doing real work. Without it the grandfather might have several sons, and the woman could be a cousin instead — which is what the cousin answer is testing.

Concept: Unwinding a relation from the inside out
Typical timeTypical: 70 s
Your timeYours: —

The rule this testsPointing and introducing

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Ten questions from Blood Relations, at your own pace.

Pointing to a photograph, a man said, "She is the daughter of the only son of my grandfather." How is the woman in the photograph related to the man?

Explanation