The ratio of the ages of a father and his son 10 years hence will be 5:3, while 10 years ago, it was 3:1. The ratio of the age of the son to that of the father today, is

The ratio of the ages of a father and his son 10 years hence will be 5:3, while 10 years ago, it was 3:1. The ratio of the age of the son to that of the father today, is
1). 1:2
2). 1:3
3). 2:3
4). 2:5

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