Present ages of A and C are in the ratio 9: 7. Present Age of B is equal to the age of C, 5 years before and the age of D is equal to the age of A, 5 years before. If the average age of A, B, C and D, 10 years before is 27.5. Find the sum of the ages of B and C after 10 years.
1
75
2
85
3
65
4
95
5
55