Question

Bimla is four times as old as her daughter. I After 5 years ago her daughter was one -seventh of her age. What is the age of her daughter after 7 years?​

Answer 1

let her daughter's age be y

Bimla' s age = 4y

5 years ago , her daughter's age = y - 5

after 5 years , Bimla' s age = 4y - 5

4y - 5 = ( y - 5 ) x 7

4y - 5 = 7y - 35

-5 + 35 = 7y - 4y

30 = 3y

y = 30/3

y = 10 years

after 7 years her age would be y + 7 = 17 years