Question:The total of the present ages of P Q R and S is `96` years. To find out Q,s present age,which of the following informations given in statements A and B is/are sufficient / A.The averagae age of P,Q,and S is `20` years B.The average age of R and S is `25` years 

A Both A and B are needed 

B Both A and B are not sufficient 

C Only B is sufficient 

D Only A is sufficient 

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