A family has 6 members P, Q, R , S , T and U. Q is the son of R, but R is not the mother of Q. P and R are a married couple. T is the brother of R. S is the daughter of P. U is the sister of Q.

Q:

How many brothers does U have?

• 1
  3
• 2
  1
• 3
  2
• 4
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