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How is T related to K?

Statements:

1. K has two sons; one of the sons is A.

2. The mother of T has only two sons - Aand B.

  • A.1 alone is sufficient while 2 alone is not sufficient
  • B.2 alone is sufficient while 1 alone is not sufficient
  • C.Either 1 or 2 is sufficient
  • D.Both 1 and 2 are sufficient

Answer: D

Correct answer: Both 1 and 2 are sufficient

Statement 2 says T’s mother has only two sons, A and B, so T is a daughter and A is T’s brother. Statement 1 makes A a son of K, so K is the parent of A and therefore of T - T is K’s daughter. Neither alone links T to K, so both are required.

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