Five years ago, Rahul was half as old as Maya. If Rahul is 15 years old now, how old is Maya now?

Question: Five years ago, Rahul was half as old as Maya. If Rahul is 15 years old now, how old is Maya now?

Solution:
Let,
Age of Maya now = x years
ATQ,
(15 - 5)/2 = (x - 5)
⇒ 5 = (x - 5)
⇒ x = 10

∴ The age of Maya now is 25 years