P, Q, R आणि S या चार व्यक्तींच्या वयांबाबत पुढील माहिती दिली आहे. Q चे वय P
The age of Q exceeds the age of P by 3 years. The age of R is twice the age of P and the age of Q is twice the age of S. Further, the age difference of R and S is 30 years. What is the sum of the ages of P and Q ?