The average age of three persons P, Q and R is 40 years. The age of Q is 9 years less than the age of P and the age of R is 3 years more than the age of P. If the age of S is 5 years more than the age of Q. If the age of T, 2 years hence and the age of S, 8 years ago are in the ratio 6: 5. Find the sum of the present ages of T and S.
1
82
2
84
3
72
4
78
5
68