The age of A is 3 years hence and age of 2 years before B are in the ratio 2: 1 If the present age of A to C are in the 7: 9. If the sum of the ages of B and C is 10 more than the sum of the ages of A and B. If the age of D is y% more than the age of C then the total age of all A, B, C and D is 155. Find the value of y.
1
35
2
28
3
20
4
25