The present ages of P and Q are in the ratio 3 : 4 respectively. The average of present ages of P, Q, R and S is 28 years. The ages of R and Q, 4 years hence would be in the ratio of 5 : 4 respectively. S’s present age is ________ and he is 8 years elder to R.
1
34 years
2
35 years
3
36 years
4
39 years
5
None of these