Question

Ankita is four times as old as her sister after 16 years she will be only twice as old as her sister find their parents ages

Answer 1

Let present age of ankita's sister be X year's.


Present age of ankita = 4x year's.



After 16 years age of Ankita = ( 4x + 16 ) year's.


After 16 years age of ankita's sister = ( x + 16 ) year's.


According to the question,



4x + 16 = 2 ( x + 16 )


4x + 16 = 2x + 32


4x - 2x = 32 - 16


2x = 16


x = 8 year's.


Present age of Ankita = 4x = 4 × 8 = 32 year's.


Present age of ankita's sister = x = 8 year's.

Answer 2

let present age of her sister is Y years.


present age of ankita is equal to 4y years.



According to the given information,


2 ( y + 16 ) = 4y + 16


2y + 32 = 4y + 16

2y = 16

y = 8 years.

present age of her sister is 8 years.

and , present age of Ankita is 32 years.