Question 131
The ratio of the ages of two persons is 4 : 7 and-the age of one of them is greater than that of the otter by 30 years. The sum of their ages (in years) is
Solution
Let the age of one person be 4x and another be 7x
it is given that 7x - 4x = 30
3x = 30
x = 10 years
and hence sum of ages = 7x + 4x = 110 years
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