Question

mother is 30 years old than her daughter. Find daughters age if before 10 years ago ratio of daughter age to mothers age is 1:7​

Answer 1

Answer:

The daughter's present age is 15 years.

Step-by-step explanation:

Let the age of the daughter be 'x'

Given that the mother is 30 years old than her daughter.

=> Age of the mother = 30 + x

Their ages before 10 years would be

Daughter = x - 10

Mother = (30 + x) - 10 = x + 20

Given that the ratio of daughter age to mothers age is 1:7​

=> (x-10) : (x+20) = 1 : 7

=> 7( x - 10) = 1(x + 20)

=> 7x - 70 = x + 20

=> 7x - x = 20 + 70

=> 6x = 90

=> x = 15

Therefore, the daughter's present age is 15 years.