P and Q are brothers. P is the father of S. R is the only son of Q and is married to U. How is U related to S?
Sister-in-law
Mother-in-law
Sister
Mother
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Nine years later, age of B will be equal to the present age of A. Sum of As age 3 years later and Bs age 4 years ago is 76. If C is half of the present age of B, then what will be Cs age (in years) after 10 years?