Question

Aanchal is 12 years older than her sister. after 4 years, Aanchal's age will be equal to thrice the age of her sister Many a. Find their present ages

Answer 1

Let her sisters age be x
aanchal is 12 years older than x
after 4 years it is 4x/3
so the equation is 
4x/3=12
4x=36
x=9.

Answer 2

Given; Aanchal is 12 years older than her sister. after 4 years, Aanchal's age will be equal to thrice the age of her sister

To Find; Present age

Solution; Let the age of aanchal=x+12

Age of manya=x

after 4 years

anchal age=x+16

many age=x+4

x+16=3(x+4)

x+16=3x+12

x=2

Hence the present age of manya is 2and aanchal is of 14