2 years ago, the father's age was 6 times of his son's age. 6 years hence the ratio between the ages of father and the son becomes 10 : 3. What is the father's present age?
A. 40 years
B. 42 years
C. 44 years
D.48 years
A. 40 years
B. 42 years
C. 44 years
D.48 years
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