The ratio of the ages of two persons is 4:7 and the age of one of them is greater than that of the other by 30 years. The sum of their ages (in years) is

The ratio of the ages of two persons is 4:7 and the age of one of them is greater than that of the other by 30 years. The sum of their ages (in years) is
1). 110
2). 100
3). 70
4). 40k

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