The present age of the Father and mother is in the ratio of 12 : 11 and after 12 years, this ratio becomes 15 : 14. Age of the father is 22 more than his son, and the age of the mother is 20 years more than that of her daughter. Find the sum of the present age of the son and daughter.
1
46 years
2
48 years
3
50 years
4
52 years
5
54 years