Question

6. The ratio of the age of A to that of B two years ago was 7:5. The sum of the present ages of A, B and C is
60 years. If the present age of C is equal to sum of the present ages of A and B, find the present age of A. (in
years)
2) 49/3
3) 22
4) 51
1) 17​

Answer 1

let age of a be 7x and that of b be 5x

age of c = 7x+5x

atp,

a+b+c = 60

7x+5x+7x+5x = 60

24x = 60

x = 60/24

x = 5/2

present age of a = 5/2 × 7 = 35/2 = 17 1/2

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