Present ages of A and B are in the ratio 2: 3. Sum of the ages of A and B, 5 years ago, is equal to the present age of C. If the ratio between the age of A, 5 years ago to the age of B, 5 years after is 3: 7. Find the average present ages of A, B and C.
1
25
2
30
3
35
4
40
5
45