Question

The present ages of Ziba and her father are in the ratio 1:3. If after 10 years, the ratio of their ages becomes 1:2, find Ziba’s present age.

Answer 1

x=0

y=0

Step-by-step explanation:

let the present age of ziba x

the present age of her father y

A.T.Q

let the present age of ziba 1x

the present age of her father 3y

1x=3y_______(i)

after 10 years

let the present age of ziba 1x+10

the present age of her father 2y+10

1x+10=2y+10_________(ii)

1x-2y=10-10

putting the value of x in eq (ii)

3y-2y=0

1y=0

y=0

putting the value of y in eq (i)

x=3y

x=3×0

x=0