The ratio of ages of R and S, 3 years ago was 5 : 7 and the ratio of age of T and U, 3 years from now will be 11 : 5. At present, T is 6 years older than S. The average age of R and U is 15 years.
From the statement given in the above question, which of the following can be determined?
(A) Present age of R (B) Present age of S (C) Present age of T (D) Present age of U1
Only A and B
2
Only A and D
3
Only A, B and C
4
All A, B, C, D
5
Only C and B