Question

the present age of Mr Sen And his son are in ratio 17:9 if the ratio of their ages 9 years ago was 7: 3 then find their present age .

Answer 1

Let 17x and 9x be their present ages.

Given that their age 9 years ago is in the ration of 7:3.

(17x-9):(9x-9) = 7 : 3

3(17x-9) = 7(9x-9)

51x - 27 = 63x - 63

12x = 36

x = 3.

Present age of sen = 17 * 3 = 51.