Question

After 15 years shweta will be four Times as old as she is now. determine her present age

Answer 1

Let Shweta's current age be x
After 15 years, she will be four times her present age
x+15=4x
15=4x-x
15=3x
5=x

Answer 2

let present age of Shweta be x

after 15 years age of Shweta =15+x

ATQ............

15+x=4x

3x=15

x=5

therefore present age of Shweta=8 years